I haven't seen this issue addressed yet, but maybe I missed it. How does one find a misplaced bear canister?

First there is the issue of the bear banging it around and leaving it behind a bush. Then there is the more likely chance of someone as clumsy as myself setting it somewhere only to have it roll down a hill into a clump of tall grass. Of ourse there is the possibility of someone helping themselvs to another's food canister, either as a practical joke or maliciously.

I was thinking of one of these. It's a key finder with a 300 foot range that weighs less than an ounce. What other options are people using? Or is no one else as clumsy as me?