The Hartz Mountain Corp. presents Angry Birds toys. The Tuff Stuff Flyer is double-sided, featuring a red bird on one side and a green pig on the other, and is constructed of super-durable ballistic nylon and double stitched seams, according to the manufacturer. Two Heads is made of soft plush material with a squeaker in the middle, and it comes in a 17-in. or 7-in. version, the company adds.