This biodegradable latex balloon grows to at least three feet when inflated. Use for delightful play or to think about atmosphere, air molecules and more. It’s “a great instant-gratification stocking stuffer — blow it up and chase it around the tree or out in the snow,” Peggy Tobias of Copernicus Toys told TDmonthly. “Fun compact packaging makes this a great stocking stuffer.” Launch date: March 2008.