This is the results of discovering my dishwasher was somehow missing 2 of its 4 legs. Quick googling revealed them to be similar to every other dishwasher's, but overpriced. Good thing I had a spare afternoon and a set of callipers.

The dimensions ended up a bit weird, but they fit as good as the original ones, and it frankly feel much sturdier. I skeletonized it as much as I could get away with to reduce the print times. The inner hole has a stepped diameter to ensure strength between the base and the thread.

Printed it on a Voron 0.2 in PLA with a 0.4mm nozzle and variable height layers with 50% infill and no supports in less than 1 hour. I'm not using a particularly tuned setup so I'm sure you could print it faster.