Funny Unicorn greetings card - happy birthday to a great friend £3.99 Personalised : Personalised Name 0 characters left. Quantity: at £3.99 each Add To Basket Personalised Unicorn birthday card - a great humourous birthday card for any good friend. Printed onto very thick 320gsm white card. A5 size. Blank inside. Comes with a white A5 envelope and presented in a clear cellophane bag.