From the Dr. Seuss Collection. Dr. Seuss Happy Birthday Stand Up Rewards. Perfect as a desk ornament when celebrating classroom birthdays, these fun stand up reward cards feature three different designs, with characters including the Birthday Bird, Thing 1 and Thing 2 and Fox in Socks, all wishing a happy birthday! Includes 8 each of 3 different designs, for a total of 24 cards. The picture on each card measures 4.75" x 5" high.