Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5337647.
This print turns a TicTac container into an ant trap with a sheltered entrance to keep your bait powder dry. I had a problem with ants in my storage room, but I also have cats and kids. I wanted to use a sugar/borax poison mix to get rid of the ants, without risking the cats or kids. You put your dry poison mixture into the tictac box, plug it into the printed part and put it in place the ants can get to. (preferably right in one of their foraging paths). The ants can get in and eat the poison, and the entrance is sheltered and protected. If your cats are curious you might want to put something else on top of it to keep them from playing with the trap and breaking it open. I have also used it outside and it keeps the sprinklers from getting the bait powder mixture wet. The tictac box is transparent so you can watch to see if the ants are actually taking the bait or not. Worked like a charm and my storage room is free from ants again. It might work for other pest/bait combos, but thankfully I just have ants so I can't test it.
It prints with no supports or raft, you might need to clean the groove a bit depending on how tuned your first layer is.