GREEN BUBBLE Transparent Silicone Case Skin Protector Cover for Apple iPod Touch 2 2G 2nd Generation 8GB 16GB 32GB + Free Screen Protector (Many Colors Available)
This is a great, affordable case. I ended up buying it in 3 colors, green, purple, and pink...personally like the green one the best. It doesnt add much bulk, but it does add a lot of protection, I dropped my ipod onto cement and had zero damage. The only thing I dont like is the fact that the volume buttons are a little harder to use now, but you get used to it.