Disclaimer: Use this hack at your own risk, and do not try on any plastic covers. How to remove Logos from your PDA / cell phone with sugar – [Instructable via Dumb Little Man] sugar. The key is to scratch of the logo without leaving and marks on the surface of the phone (in my case PDA). Sugar works perfectly. The idea of using sugar is admittedly not my own. I first came across it on the following forum. Yet, I was not sure whether it actually works, and how to go about it. So I just decided to do it: and the results are good. Apparently the sugars -crystals are strong enough to remove the logo (sticker) but too soft to scratch the casing leaving it thus unscathed.