On the subject of #Mimics in #Pathfinder1e
Here is a snippet from the bestiary regarding their ability to mimic objects.
Mimic Object (Ex)
A mimic can assume the general shape of any Medium object, such as a massive chest, a stout bed, or a door. The creature cannot substantially alter its size, though. A mimic’s body is hard and has a rough texture, no matter what appearance it might present. A mimic gains a +20 Racial Bonus on Disguise checks when imitating an object in this manner. Disguise is always a class skill for a mimic.
Environment any
Organization solitary
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Heck it even suggests a Door there! And here I thought it was being a little bit original...
With this said, any GM/DMs out there, let's come up with some fun and effective Mimics with these limitations in mind.
My personal favourite is a privie, an old style toilet, but a Mimic, literally catching adventurers with their pants down.