This is a remix of Xenyos N64 Controller wall mount with cartridge design. (https://www.thingiverse.com/thing:3077885)

It is made for original N64 controllers with the notch for the memory cards/rumble paks, so it can clip in. Due to the comments try to print it in 97-98% scale, otherwise 100% worked perfectly for me, too.

Always a good game!