I had a GameBoy Color and Advance SP that were beyond rescue. The insides had all been deformed via battery acid and it was time to throw them out. However, the outsides looked pretty good. I decided to make some decorations out of them after seeing something very similar on reddit (https://www.reddit.com/r/gaming/comments/1t7i3c/my_take_on_the_gameboypokemon_display_for_my/)
How to turn a GameBoy into Art
Basically, its a sheet of black cardboard with a gameboy and some games blu-tacked on. I put on some rubber feet to help hold up the gameboys since they weigh a bit more. I used the IKEA RIBBA frame for this (http://www.ikea.com/au/en/catalog/products/80208138/). The logo is printed on a standard colour printer, nothing more fancy than that. Apologies for the glare in the photos, its pretty difficult to take.