I posted a few months ago about GelaSkins iPod covers, which I love and admire. They're the most creative ones I've seen--designed by real, live artists who aren't (necessarily) famous--and there's a huge variety to choose from. Primarily decorative, and highly recommended.

Now you can apply these thin vinyl beauties to your laptop as well. The company just announced the new line; they're sized for Apple laptops, but come in 5 sizes, so you should be able to fit one to whatever machine you carry around. The skins are easy to apply; they stay on your device with remarkable tenacity, but you can peel them right off if you want to. Check out the new laptop GelaSkins to see what might fit your style. $32.95 a pop.