3d printer in public place that continuously downloads random models from marketplace sites, then prints only the supports, not the model

avatar by @citriccenobite
you can say "chimoora" instead of "cow of tailed snake" if you want. its a good pun.
i ramble about aerospace sometimes
I take rocket photos and you can see them @aWildLupi
I have a terminal case of bovine pungiform encephalopathy, the bovine puns are cowmpulsory
they/them/moo where "moo" stands in for "you" or where it's funny, like "how are moo today, Lupi?" or "dancing with mooself"
3d printer in public place that continuously downloads random models from marketplace sites, then prints only the supports, not the model
game: stream it and have chat guess the object as the supports get printed