Customizable Snap-Fit Door Knob Safety Cover

This is my take on a child door knob safety cover. I needed something to cover 20+ doors and didn't want to spend $60+ on them. I also didn't want to deal with extra hardware like screws or nuts to keep the things together, so this simply snaps together over the knob.

(Fair warning, this is fairly difficult to remove from the door if you use tight allowances around the knob.)

This print, as is, takes roughly 15-20g of filament, so $.35-$.40 with a $20 roll roughly. It's designed to fit a