I wanted to display my Game Boy consoles on an IKEA skadis. So I mixed a couple of designs of cartridge wall mounts of the console and a kind of generic skadis design of the cartridge size.
Remixed the designs in Blender.
Sanding the cartridge part is recommended to avoid damaging the Game Boy connector.
Update
The game boy color version had a problem and thanks to @gizsgugya it's been repaired.
The author remixed this model.