Of course the best mash are made with a masher you've printed yourself :-) We mainly needed one of this in the kitchen but keep forgetting to buy it, on a Saturday I sat down and played with tinkercad until I've got something I could call a potato masher. I've printed it on a Mini Kossel it took about 6 hours and 70grams of filament on 0.3 layer height and 20% infill pretty standard no support. Made mash for Sunday dinner yeah!!! ps: if printed in PLA wait for the potato to cool before getting savage on them with that little baby enjoy Disclamer: Use at your own risk!