Hotwheels Display Case (Wall Mount)

Back then my husband had 80 pieces of Hotwheels. they were in a bin and where not opened so they are taking a lot of space too. I decided to make him a case for those 80 out of foamboard and it was okay but not stable. Then he started another one, and another one, aannnd another one! because he said "I don't have this model yet" and those are again in the bin. I thought of creating a case for a single hotwheel that is designed like a puzzle piece so I can have them connect to each other and will be easy for me to just add new ones whenever in any side in case he buys more.

This is a one piece 3d design that would need adhessive support base to be safe. I added holes for screws as you would need to screw the first case on the wall, then just keep adding more cases around it without the need of screwing each one of them. On the other hand, it will eventually get heavy. So, I suggest to not rely on only one case screwed on the wall. Spread out the cases with screws, put a screw on the new one when you think it starts getting heavy to support the very first case. The little space in the front is dedicated for the name of the Hotwheel if you desire to put one. This design is good to print already, no spacing needed anymore.