Sesame Street® 1st Birthday High Chair Decorating Kit. Let Elmo, Big Bird, Abby Cadabby and Cookie Monster help make your boy or girl's first birthday party an extra special celebration! Featuring Sesame Street's favorite characters, this Sesame Street® 1st Birthday High Chair Decorating Kit is perfect for your party and makes cleanup simple. Includes a 43" paper fringe pennant banner and a 47" x 30" plastic floor mat with plastic fringe. (2 pcs. per set) Sesame Workshop ©, Sesame Street © and associated characters, trademarks and design elements are owned and licensed by Sesame Workshop. © 2007 Sesame Workshop. All Rights Reserved.