Just a very simple tray to put on top of the head stock of a mini lathe.
I attached mine with double sided tape. But will eventually glue magnets to the bottom for easier removal when needed.

I mostly use it to hold the chuck key and chuck nuts and washers while I am changing to my 4 jaw chuck. I kept putting the nuts there without the tray and they would roll off 😅. Tray solves that issue easy!
 

No supports required. I only used 10% infill as I was just making it to use up the last of a filament spool.