50% off personalised greetings cards using promo code @ Funky Pigeon
Expires 30th June 2012.
Enter the code funky0250 at checkout for 50% off Funky Pigeon greetings cards.
You need to actually type the code in, you can't just copy and paste it.
Free delivery if you buy 2 cards (even if you only need 1 card, I'd get a cheap small 2nd card for 89p using the promo code instead of paying the 60p postage so the 2nd card only really costs 29p!).
I can highly recommend Funky Pigeon, their cards have always been good quality and delivered promptly.
Oh, and the voucher code comes from the o2 priority moments app :)