As I have quite a few unboxed Gameboy games I decided to jump on the bandwagon by creating custom game cassette cases. A lot have people have done this before me so luckily there was a template online that I opened in Photoshop, added the cover artwork and logos and printed onto normal cartridge paper. They looked OK but to make them look a little better, I decided to laminate them and that made a world of difference. They look great and I will eventually print all the rest I need cases for, I have around 40 I need to print.
I think instead of printing them on my standard printer and laminating them, I think I will either get a photo printer and print them at home, or get them printed elsewhere as photos.