I have to say the outhouse might be the smartest trick, the scent of an outhouse probably masks/smells a lot like a mimics mouth. 🤔 Or so I would assume, it would have to smell like a bears breath.
OP, it's pretty scummy to remove an artist's watermark from their image to repost it, but it's just extra lazy to not re-centre the image afterwards, so you have a big white space where the watermark used to be.
My party jokes about the Palabard’s helmet being a mimic. He went College of Eloquence, and the DM allowed him to swap the Persuasion/Deception bonus for Persuasion/Intimidation instead. He also took expertise in intimidation, so with RAW he can’t roll lower than a 21. And sue to a mimic’s CHA of 8, it has a -1 on any intimidation saves, so it can literally never out-roll the Palabard.
We joke that the mimic started as a helmet to try and entice a creature into wearing it… But now (because of his min-maxed intimidation bonus) it’s afraid to actually reveal itself and attack the Palabard. On top of that, it has realized that if it just sticks with the party that it’ll eat plenty from the corpses they leave behind.
They should make a mimic variant that is basically like bed bugs. Once you have one in your pack there is a small chance any item taken from the pack is a mimic until you have taken it to an exterminator.
I once encountered a greater mimic pretending to be a cottage in the middle of the woods. It got us close enough to peer in its "windows" before it started attacking.