iFixit is offering its clear case "revelation kit" for iPhone 4 and 4S at a discount. At US$19.99, saving you $10 off the normal price, the kit is on sake until the end of August 16th. What's more, the kit is finally available for the white iPhone.
iFixit's revelation kit basically provides you with a replacement back panel that is clear, revealing the insides of your iPhone 4 or 4S. The kit includes the transparent panel, a pentolobe and Phillips screw driver, Phillips screws to replace your pentalobe ones, and iFixit's iPhone 4/4S epic screen protector.
Replacing the back panel of your iPhone 4/4S looks really easy. iFixit rates the procedure as "easy" and provides a step-by-step guide as well as YouTube video (shown below) to show you just how to do it.