I'm a big fan of Gelaskins, which are basically glorified stickers that you attach to your gadgets, well, just because. There's no functional benefit to adding one of these bad boys and you're either going to love 'em or hate 'em. But I'm firmly in the love 'em camp.
They're a cool way to add a little personality to what is really just a tool at the end of the day. Gelaskins are also perfect for covering the logo on your, ahem, hackintosh (left). Installation is pretty simple thanks to the micro-perfs in the 3M film that they use.
Any leftover bubbles slowly disappear within 24 hours, unlike some of those screen protectors where you're sweating every bubble. They can also be removed without leaving any residue and moved to another device -- if you're careful.
Add some personality to your kit this weekend. Live dangerously!