DecentM , 8 hours ago

Glass cups work unfailingly for me. As far as I know they don’t see very well, so once, I tried slowly lowering one over them, and have been doing it since. Nothing else needed, just wait for it to land near you on a hard and even surface. They so far have not noticed it until the cup was fully down. After catching one, I slide a thin paper/something under the cup, and take the whole thing outside to release it.