I was making a lightsaber for my kid, and bought a length of clear PVC from Home Depot. (I know, they have bad politics, but Lowe’s didn’t carry clear PVC.) My local store didn’t have any clear PVC or clear accessories in stock, so I had to place an order for shipping, so I got a couple things “just in case” for the build. One of those was a pipe cap.
Didn’t end up using the pipe cap, because lightsabers don’t have that sort of end. It now sits at my desk as a teeny tiny trash can. Bits of thread from sewing, nail clippings, tags I clip off of shirts, a lot of things fit in the teeny tiny trash can. When it’s full, I empty it into the trash, but for a rather small pipe cap, it holds quite a bit of small trash.