-After seeing a photo of a hinged NES case (and unable to find original maker/.stl) I set out to make my own.
-I opted to forgo the hinge for a simpler/cleaner design.
-I modeled a sleeve much like the ones used for NES game cartridges (My sleeves are scaled to be snug and are held in place by friction. I may come back to this and add a textured sleeve if there is interest).
-Models are thin enough that two-three will fit in a standard Nintendo Switch Game Case (two with sleeves and three without. I'll work on a separate carrying case for these models soon).

-Here's the reddit link which inspired me.
https://www.reddit.com/r/gaming/comments/feqcim/these_are_the_coolest_cases_ever/

I decided to forego the warning label and screw holes on back of the game cart. If there is interest I'll upload versions which include those.