I've put my printer on top of an IKEA Kallax so that my child cannot reach it (atm ;) )
the top module of the kallax is the one with a door so I designed a simple trashbin which I can simply hang on the the door to put my leftovers of the 3d printer into it.

I've mad a flat version and I made a version which is tilted, because my door opens towards a wall.

Print it upside down (opening on the bottom) so you didn't need any support.

I can make nearly every angles if requested.