Silly Costume Contest - Team Umizoomi - Glow-in-the-Dark Sticker Book Author:Golden Books Pumpkins, costumes, ghosts, and bats--Nickelodeon's Team Umizoomi is counting down to Halloween and the Big Costume Party. Boys and girls ages 3-7 will love this coloring book with over 30 glow-in-the-dark stickers.