Did you guys ever see this keychain version? It is tiny as shit, but it actually works. Word of advice though, don't use it as a keychain. If it opens up (which is likely) you will have a pocket full of microscopic pieces and probably end up losing at least one (just like the real Mousetrap). I ended up buying another one just to sit on the shelf.

I had that one too. Once again, do not use it as a keychain though. The wire connecting the board to the tweezers ripped off within a month through normal usage. I purchased a lot of those keychanins, and the only interesting ones that survived through typical usage were Twister and Hungry, Hungry Hippo. I thought the Mousetrap was too cool not to display, so after I lost everything on the first one I ended up buying another one. The Perfection keychain is really cool too, but because they are so fragile I never wore that one either. As a tiny game it functions perfectly though.