Our Rainbow Unicorn thank you cards will be the perfect way to thank your family and friends for helping celebrate such a magical and wonderful occasion! Personalize these unicorn birthday thank you cards with your child’s name and choose up to 4 colors. You have the choice of ordering printed cards or a digital file that you may print anywhere. The digital file will come both in a jpg and a pdf file. Printed thank you cards are printed on 100lb premium matte paper.