Hmm... Just saw this video linked from another site:
https://www.youtube.com/watch?v=oreOa_rIUj0
Short story, using nail polish display stands for Game Boy games looks pretty awesome.
There have been discussions here before, and the most common approach I've read about is holding them in binder sheets... but this gives a much nicer display in my opinion. Seems pretty affordable too, unlike most of the wall mount cases that I've investigated.
Has anyone else tried this? Or have other tips about affordable ways to display loose games?
A real shame that GBA games aren't tall enough to sit well in these cases though. I've got about 30 loose GBA games that I'd love to find a nice display solution for - but have had no luck so far. (Some people do DS cases with custom covers, but I don't have easy access to cases or a color printer so that's not an option right now.)
Edit:
Didn't realize there was an existing topic dedicated to storing/displaying GB carts, and it didn't pop out when I searched before posting. Adding a link here because it's got some other options/discussion on the topic!
Gameboy Storage Guide:
viewtopic.php?p=605190#p605190