The Friendly Swede 5 x Penguin Silicone Cases Skins Covers - Hot Pink Purple Green Black Blue - Microfiber Cloth and Retail Packaging
My girls love these iPod cases.  They can change the color whenever they want because they are easy to take on and off.  They have a snug fit and have a nice soft feel.  They only thing they would change is the little flippers sticking out, as they can be slightly uncomfortable when holding the iPod in your hand.  Overall a great value!