The OtterBox Commuter iPhone 3GS Case comes in a range of 7 funky colors, including, black, blue, green, pink, red, white and yellow.
"Available in 7 vibrant colors, the OtterBox Commuter™ TL Series for iPhone™ 3G/3GS incorporates 3 slender, yet sturdy layers to provide superior protection with STYLE. First, apply the self-adhering film to protect your touch screen from scratches and dings. The second layer is a textured silicone skin with inner-coring, designed to dissipate shock AWAY from your iPhone."
If you want one, the OtterBox Commuter iPhone 3GS Case is available for $29.95 from OtterBox.