Where are you getting them from? Is the rear of them sticky or what not and easy to remove without messing up the case?
Here:
http://www.luckyskins.com/iphone/iphone-5s/iphone-5s-duotone-series/3-pack-iphone-logo-inserts.html
These are basically decals that can be set into the embossed apple logo on the case. FWIW, I tried a woodgrain one on my black leather case but didn't care for it. But that's just me. Others like them. These decals are cheap enough to get and at least try them out.