I have a 4x USB switch from AIMOS that has a tiny (3cm diameter) remote. The vendor delivers it with a double-sided sticky tape to mount it somewhere. Did not last long so I decided to make a decent fixture for under the desk.

I printed it in black PETG, but PLA should also be fine. I used supports on the tray.

The smaller part is pushed into the holder to lock the remote and hold it in place firmly.