I made a 3d printable eReader case for my wife. Wanted to test what would happen if we water logged them and left them in the sun to dry.
Two of the cases are made from PLA while the other is made from PETG. They are all held together by thread and leather.
The test here is to see if moving from PLA to PETG was the right move since the last time I did this, the case turned into a banana.
My eventual plan once I’ve finished with my testing is to sell these cases and make their designs available for others to print.
An Amazon box probably works really well as a free enclosure, but I’d worry about the fire risk. The enclosure I made I put a fire detector in just to be safe, making it out of paper would make me very paranoid.