We're very tolerant here at Giz - if the thought of your iPhone 4 without its clothes on gets you excited, by all means! But it's probably not very good for the phone. Slap on this exposed-guts back decal instead.
The decal's makers claim the skin, less than 0.3mm thick, is waterproof, scratch resistant and should last between three to five years. And 10 bucks isn't so bad to be able to indulge in your teardown fetishism wherever you'd like. Be proud! [Etsy via Nerd Approved]