Here's my problem, though: I could never decide on a design for my laptop. I'd come up with one, but a few days later I would think it was lame. That cycle happened a dozen times before I thought of a better way: Why not use the laser cutter to create a precision-cut sticker, instead? This "tattoo" would be removable, so I didn't have to be gun-shy any more.
This instructable shows what I did, including the source files for the design, a description of the special retroreflective tape I used, and a nifty trick for getting a perfectly-placed sticker.
Step 1: Make a Design
I used a funky perspective to bring the lit "power" logo off-center. That way the whole sticker can be centered while the power logo can be as big as possible while avoiding that bite in the right side of the apple.
Step 2: Choose a Sticker Material
In addition, unlike other stickers, the retroreflective tape I used for the new sticker has a thin metal film it it, so the Apple logo is masked completely. Other materials might allow the light to show through.