i'm currently working on a Raspberry Pi project, and i was wondering how well decals work on 3d prints.

also, what is the cheapest/lightest material that will withstand some impact? my print will look like this:
screenshot_182.jpgscreenshot_184.jpg
as you can see, my print has fine details i hope to have etched into the faceplate, but i'm afraid it's going to be too small to show up, and i dont have the budget to go get it made in extremely high-def.

what are your recommendations?