Elna Grasshopper Sewing Machine foot

Came across a 1951 or so Elna “Grasshopper” sewing machine, the rubber feet from 70 years ago were unsurprisingly as hard as rock. Once the original is pried out the new should just push on. You can change the walls and infill on TPU to change the hardness somewhat but it's still not “grippy” like real rubber… however it is better than the fossilized ones that were on there. And it won't gouge your tabletop.