Case-Mate's new Creatures line of silicone AT&T and Verizon iPhone 4 cases include 6 cute characters that will make you want to have them all. Sounds familiar? Each case from the Creatures series has its own unique raised textured exterior that provides grip and unique feel. The Case-Mate Creatures series of iPhone 4 cases are each available for $24.99. Who knew iPhone 4 cases could be so fun?