Top 10 21st Birthday Cards for Son UK – Birthday Greeting Cards

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1. Papyrus

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Papyrus Birthday Card Cheers and Wishes

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Papyrus #ad - Front message: Stout & About. Papyrus birthday cards offer premium style, unique embellishments and uplifting wishes for anyone! Card measures 4. 5 in. Inside message: Hoppy Days. X 6 in. Extra postage may be required. Papyrus offers premium stationery, greetings cards, gift wrap, gift bags and entertaining products for everyday occasions and all holiday seasons--all with unique designs and quality embellishments.
BrandPapyrus #ad
ManufacturerPapyrus #ad
Height0.1
Length1
Width12.95 cm (5.1 Inches)
Part Number6332399
Model6332399

2. Prime Greetings

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Made in America, Packaged in Protective Mailer, Prime Greetings Birthday Card For Grandson, Eco-Friendly, Thick Card Stock with Premium Envelope 5in x 7.75in

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Prime Greetings #ad - Inside message: so proud of who you are, have a wonderful birthday! Prime greetings is a boutique greeting card studio located in metro detroit. We offer personalized, imaginative, and one-of-a-kind greeting cards for every special person in your life.

Front message: happy birthday to a Grandson who’s fun, loving, handsome, brilliant, determined, and all around awesome!. Eco-friendly paper: promoting sustainable forest Management and Responsible Forestry From American Paper Mills. We are honored and love the fact our cards are used every day for the special moments in your life. Card size: 5 Inches Wide and 7. 75 inches Long. Made in america: premium envelope included, Printed on Thick, Premium, Glossy Finished Card Stock Using Proprietary Process.
BrandPrime Greetings #ad
ManufacturerPrime Greetings #ad
Height0.25 cm (0.1 Inches)
Length19.69 cm (7.75 Inches)
Width12.7 cm (5 Inches)
Part Number032102PG
Model032102PG

3. Hallmark

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Hallmark Signature Peanuts Birthday Card Snoopy Canoe

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Hallmark #ad - Birthday card measures 5" x 7. 2" and comes with a coordinating envelope. Printed on high quality paper stock, Hallmark's greeting cards are made with paper from well-managed forests.

With a cheerful design and festive sentiment, sister, dad, brother, this is the perfect way to celebrate your coworker, mom, or anyone else on their birthday. Inside reads: "Wishing you happiness the whole day through. ". Cover features a scene of snoopy and woodstock canoeing on a mountain lake, embellished with 3D paper attachments and gold foil. Hallmark signature offers stylish shoppers a curated and considered line of upscale and unique cards and gifts that reflect their personal style and make an immediate and lasting impression. Wish your favorite outdoorsy Peanuts fan a happy birthday with a celebratory birthday card they're sure to appreciate.
BrandHallmark #ad
ManufacturerHallmark #ad
Height0.03 cm (0.01 Inches)
Length18.29 cm (7.2 Inches)
Weight0.03 kg (0.06 Pounds)
Width12.7 cm (5 Inches)
Part Number699RZH1195
Model699RZH1195

4. Papyrus

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Papyrus Bar Mitzvah Card Fine Young Man

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Papyrus #ad - Extra postage required. Papyrus offers premium stationery, gift wrap, greetings cards, gift bags and entertaining products for everyday occasions and all holiday seasons--all with unique designs and quality embellishments. Front message: Bar Mitzvah. Papyrus cards offer unique quality embellishments and premium style! Envelope and unique Papyrus gold seal included. Share special congratulations with a Papyrus Bar Mitzvah card. Inside message: wishing a fine young man pride in your great achievement and happiness in your life ahead.
BrandPapyrus #ad
ManufacturerPapyrus #ad
Height0.25 cm (0.1 Inches)
Length15.49 cm (6.1 Inches)
Weight0.03 kg (0.07 Pounds)
Width15.49 cm (6.1 Inches)
Part Number6220694
Model6220694

5. Papyrus

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Papyrus Birthday Card for Mom Wonderful Day

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Papyrus #ad - Extra postage required. Front message: Mom. Inside message: it's a wonderful day to let you know you mean so much to me. Papyrus birthday cards offer premium style, unique embellishments and uplifting wishes for anyone! Envelope and unique Papyrus gold seal included. Papyrus offers premium stationery, gift wrap, greetings cards, gift bags and entertaining products for everyday occasions and all holiday seasons--all with unique designs and quality embellishments.
BrandPapyrus #ad
ManufacturerPapyrus #ad
Height0.25 cm (0.1 Inches)
Length13.46 cm (5.3 Inches)
Weight0.07
Width18.29 cm (7.2 Inches)
Part Number6811285
Model5433920

6. AK Giftshop

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Personalised Pet Photo Birthday Day Card From The Dog Cat BLUE

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AK Giftshop #ad - Digitally printed on premium quality 300gsm silk card. A5 card - size 210mm x 148. 5mm. Personalised with your chosen text of your pet/pets name/s. Personalise this birthday card with your very own pet photograph. Blank inside for your own personal message. Comes with a lovely quality coloured envelope.
BrandAK Giftshop #ad
ManufacturerAK Giftshop Ltd #ad
Height0.03 cm (0.01 Inches)
Length21 cm (8.27 Inches)
Width14.85 cm (5.85 Inches)
Part Number14578

7. Hallmark

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Hallmark Signature Birthday Card Seashell Birthday Cake

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Hallmark #ad - Cover features a nautical birthday cake and a "Happy birthday" banner, embellished with dimensional attachments like seashells, stars, glitter, and pearls, and gold foil.

Hallmark signature offers stylish shoppers a curated and considered line of upscale and unique cards and gifts that reflect their personal style and make an immediate and lasting impression. Beachy birthday card measures 5. 4" x 5. 4" and comes with a coordinating envelope. Wish your friend or family member a happy birthday with a celebratory birthday card. Inside reads: "wishing you a little piece of paradise today. ". Printed on high quality paper stock, Hallmark's greeting cards are made with paper from well-managed forests.
BrandHallmark #ad
ManufacturerHallmark #ad
Height0.03 cm (0.01 Inches)
Length13.72 cm (5.4 Inches)
Weight0.06
Width13.72 cm (5.4 Inches)
Part Number699RZH8002
Model699RZH8002

8. Papyrus

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Papyrus Birthday Card One Big Adventure

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Papyrus #ad - Extra postage required. Envelope and unique Papyrus gold seal included. Inside message is life is one big adventure. Papyrus birthday cards offer premium style, unique embellishments and uplifting wishes for anyone! Card measures 7 in. X 5 in. Front Message is blank. Envelopes and unique Papyrus gold seals included. Your birthday should be too! Enjoy Every Amazing Moment.
BrandPapyrus #ad
ManufacturerPapyrus #ad
Height0.25 cm (0.1 Inches)
Length12.7 cm (5 Inches)
Weight0.06
Width17.78 cm (7 Inches)
Part Number6811495
Model6631219

9. Good Egg Greetings

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Good Egg Greetings Screaming Goat Birthday Card | Funny Birthday Card for Men Women Kids | Screaming Goat Meme Sound and Shaking Head Motion Bday Greeting Cards 5.25 x 8.18 Inch

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Good Egg Greetings #ad - Celebrate the birthdays of friends and family with our Screaming Goat Card! Gag gift – no one will ever forget this unique funny birthday card. International products have separate terms, including fit, and language of product, age ratings, are sold from abroad and may differ from local products, labeling or instructions.

Great for everyone – this screaming goat birthday card combines humor and surprise to entertain kids, teens, and women alike, men, making it a versatile gift choice for any birthday celebration. Co-workers, colleagues, and children will giggle at the silliness of this screaming goat card.

Sound and motion – as they open this amusing birthday card, the goat shakes its head side to side with each long scream. It's a gift that will keep on giving. High quality card – impress with this large 5. 2 x 8. 18 inch card printed on premium-grade paper with a glossy shine, giving it a lasting quality that’s perfect for any happy birthday gift card.
BrandGood Egg Greetings #ad
ManufacturerGood Egg Greetings #ad
Height0.2 cm (0.08 Inches)
Length20.78 cm (8.18 Inches)
Width13.34 cm (5.25 Inches)
Part NumberSG000525
ModelSG000525

10. 3D LiveLife

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3D LiveLife Greeting Card, Canine Selfie from Deluxebase. Colourful Dog Lenticular 3D Card for Any Occasion and Age. Original Artwork Licensed from Renowned Artist, Michael Searle

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3D LiveLife #ad - Famous artists - the collection showcases the artwork from the most renowned 3D Artists in the world. The latest lenticular technology and manufacturing process are used to create an array of breath-taking products of the highest quality.

This one would be perfect for those with an interest or passion for any canine! Blank canvas - let your imagination run free with these blank greeting cards. Great card for all occasions - this doggo themed, wedding, colourful card is 16cm by 16cm which gives plenty of space to write out the perfect Christmas, birthday, graduation, engagement, retirement or congratulations card for a loved one!. Whether it's for a girl, your daughter, belated or not, a boy, your son, send your well wishes under any circumstance! It also comes with a crisp white envelope.

They look so real you'll think you can reach in and touch what's inside! Buy with confidence - deluxebase has specialized in designing fun and educational toys, gifts and homeware in the EU and US for my than 25 years. For dog lovers - we have an extensive range of 3D Lenticular cards available.
Brand3D LiveLife #ad
ManufacturerDeluxebase #ad
Height0.4 cm (0.16 Inches)
Length16 cm (6.3 Inches)
Width16 cm (6.3 Inches)
Part Number42123