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21st Birthday Cards

Know someone who is finally becoming mature? (or at least think they are?) maybe it’s just someone’s 21st Birthday?

A 21st Birthday is the best time for a massive party and probably the biggest milestone for partying. So why not celebrate with one of our amazing milestone birthday cards? We have a lovely range to choose from with many different styles. We have brilliant funny cards, Unique and contemporary to help celebrate this birthday!

Our selection of 21t birthday cards come from many different suppliers - we've spent many hours finding the best products in the country, so all your 21st birthday card needs are taken care of! Have fun looking through our funny 21st birthday cards!

Enjoy having a scroll through our 21st milestone birthday cards... Remember if these aren't enough, then head over to Birthday Cards for wide selection of all ages cards.

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21 Hooray! - Unique 21st Birthday Card 21 Hooray! - Unique 21st Birthday Card new
£3.95
2 in stock
A hand finished 21st Birthday card illustrated. The picture is placed in a clear bag which is filled with loose glitter stars and ‘dot’ confetti. This is then placed behind a square frame on the front of the card, giving a smart finish with glitter that you can shake around. From The shakies range. Inside - Blank inside for your own personal message Envelope - Kraft Paper & Cello Wrapped Size - 17…
21 Today! (Leading Lady Range) - Large Format 21st Birthday Card 21 Today! (Leading Lady Range) - Large Format 21st Birthday Card
£3.25
4 in stock
This card has a bold floral designs combined with cold foils and embossed lines to give it a great premium feel - its big too! Inside - Blank for your own personal message Envelope - White  envelope Size - 190 x 164mm Card Type - Great quality cream (280gsm) textured. Publisher - The Art File 
21 Id Be Keeping That Shit Quiet - Rude 21st Birthday Card 21 Id Be Keeping That Shit Quiet - Rude 21st Birthday Card new
£2.95
26 in stock
Rude Humour 21st Birthday Card. Certainly a direct kind of humour, hilarious nonetheless. These simple cards let the words speak for themselves. Inside - Blank for your own personal message. Envelope - Brightly Coloured Size - 208 x 148mm Card Type - High Quality Card Publisher - Cheeky Chops
21 Today! Get a Job And Get Out - Humorous 21st Birthday Card 21 Today! Get a Job And Get Out - Humorous 21st Birthday Card
£2.85
6 in stock
Say it like it is - with this hilarious 21st Birthday Milestone card Inside - Blank inside for your own personal message Envelope - Plain White Envelope Size - 145mm Sqaure Card Type - FSC mix from responsible sources Publisher - Buddy Fernandez.
21 Years And 9 Months Ago - Humorous Milestone Birthday Card 21 Years And 9 Months Ago - Humorous Milestone Birthday Card
£2.85
4 in stock
This funny milestone birthday card is pretty straight to the point and self-explanatory! Inside - Blank for your own personal message Envelope - Beautiful Sunset Orange Envelope & Cello wrapped Size - 105 x 150mm Card Type - Premium Quality 350 GSM Card Publisher - Cardshit (pronounced Cards-Hit, of course)
21st Birthday - Unique Birthday Card (Shakies Range) 21st Birthday - Unique Birthday Card (Shakies Range)
£3.45
2 in stock
This is the 21st Birthday - Unique Birthday Card from The Shakies Range A hand finished birthday card illustrated by Claire Shorrock. The picture is placed in a clear bag which is filled with loose glitter stars and ‘dot’ confetti. This is then placed behind a square frame on the front of the card, giving a smart finish with glitter that you can shake around. From The shakies range. Inside - Blank…
21st Blue Button - Handmade Milestone Birthday Card 21st Blue Button - Handmade Milestone Birthday Card
£2.95
5 in stock
Superb quality homemade cards. These cards feature plenty of stunning homemade details such as buttons, glitter, sequins, 3D detailing plus much more! Inside - Blank for your own personal message Envelope - Kraft or White with gold spots Size - 160 x 118mm Card Type - High quality board Publisher - Dilly & Pink
21st Direction of Your Dre - Contemporary 21st Birthday Card 21st Direction of Your Dre - Contemporary 21st Birthday Card
£2.75
6 in stock
Contempoary Milestone 21st Birthday Card. Brilliant lyric on front of the card Inside - Happy 21st Birthday Envelope - Charcoal Grey Size - 160mm square Card Type - Premium uncoated matt board Publisher - ICON
21st Green Button - Handmade Milestone Birthday Card 21st Green Button - Handmade Milestone Birthday Card
£2.95
3 in stock
Superb quality homemade cards. These cards feature plenty of stunning homemade details such as buttons, glitter, sequins, 3D detailing plus much more! Inside - Blank for your own personal message Envelope - Kraft or White with gold spots Size - 160 x 118mm Card Type - High quality board Publisher - Dilly & Pink
21st Old and Wise - Contemporary 21st Birthday Card 21st Old and Wise - Contemporary 21st Birthday Card
£2.75
5 in stock
Contempoary Milestone 21st Birthday Card. Brilliant lyric on front of the card Inside - Happy 21st Birthday Envelope - Charcoal Grey Size - 160mm square Card Type - Premium uncoated matt board Publisher - ICON
Age 21 Kapow Shakie - 21st Birthday Card Age 21 Kapow Shakie - 21st Birthday Card
£3.45
6 in stock
This is the 21st Birthday - Unique Birthday Card from The Shakies Range A hand finished birthday card illustrated by Claire Shorrock. The picture is placed in a clear bag which is filled with loose glitter stars and ‘dot’ confetti. This is then placed behind a square frame on the front of the card, giving a smart finish with glitter that you can shake around. From The shakies range. Inside - Blank…
Age 21 Kapow Shakies Card - 21st Birthday Card Age 21 Kapow Shakies Card - 21st Birthday Card
£3.45
6 in stock
This is the 21st Birthday - Unique Birthday Card from The Shakies Range A hand finished birthday card illustrated by Nicola Watson. The picture is placed in a clear bag which is filled with loose glitter stars and ‘dot’ confetti. This is then placed behind a square frame on the front of the card, giving a smart finish with glitter that you can shake around. From The shakies range. Inside - Blank i…
Herd You're 21Today - Humorous 21st Birthday Card Herd You're 21Today - Humorous 21st Birthday Card
£2.75
6 in stock
This humorous 21st birthday card is from The Art File. Sized at 120 x 170mm, the card has an embossed cow design onto a lovely brown board. This card comes with a white envelope and is blank inside for your own personal message.
It's The Big 21 Let's Party It's The Big 21 Let's Party
£2.75
6 in stock
This stunning 21st birthday card is from 'The Big One' range at The Art File. Sized at 120 x 170mm, the card has an embossed 21 in the middle of a lovely high quality design onto a classic white board. This card comes with a white envelope and is blank inside for your own personal message.
Time To Party (Geronimo Range) - Large Format 21st Birthday Card Time To Party (Geronimo Range) - Large Format 21st Birthday Card
£3.25
2 in stock
This card has a bold floral designs combined with cold foils and embossed lines to give it a great premium feel - its big too at 190 x 164mm. Comes with white envelope and is blank inside for your own words.
Twenty-One (Scrabble) - Unique 21st Birthday Greeting Card Twenty-One (Scrabble) - Unique 21st Birthday Greeting Card
£3.25
3 in stock
These cards are beautifully put together with a wooden scrabble like piece at the start of every title on their cards. This really adds a strong touch of detail and a high quality feel. Inside - Blank for your own personal message Evelope - Kraft High Quality envelope Size - 155mm Square Card Type - High quality Board Publisher - Bexy Boo

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