Replacement Knob for G.E. Cafe Range Top

I made these pretty quickly in TinkerCad to replace the knobs on my gas range that have busted over the years. I found O.E.M. replacements difficult or impossible to source, and I wasn't sure if aftermarket knobs would fit the stems.

The shape isn't a perfect match, but it's better than the pliers I was using to turn on the gas before!

This fits a stem that is a 7mm diameter cylinder with a flat part at the top that cuts about 2mm off of that axis.