Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2753210.

Replacement vent cap for snap-on style vent. There are two models as I found after making one with the perfect fit, there was another very slightly smaller size vent on a different can. Nice snug fit and holding up nice with PLA. Found it best to print these in a bright color so you can find them if dropped....or just print another.