This is a simple, 2-part grocery bag trash can that can be mounted on a wall, cabinet, or wherever. There are 2 holes in the back support that can be used for screws but I used double sided tape to mount it to a wall in my bedroom by my bed.

There are 2 small hooks for smaller bags if you want to use them by pulling the handles down over them and not using the locking ring. Does require much smaller bags but they work. The ring is needed for standard and larger size bags.

I printed this in ABS at .28 layers but it can be printed in PLA or whatever filament you choose I would imagine. I printed it with only supports on the 2 small hooks on the sides and none under the angled supports so they came out a bit rough but not too bad. Printing at .2 and / or using supports would probably result in a smoother surface / nicer look.

I printed the bracket and ring upside down as in the pictures. The .stl files show them in the normal direction as that was how they came out from the CAD software.