The fake knife switch actually mounts OVER THE EXISTING PLATE, which makes this design safer than the previous one, because we all know that PLA does not meet the eletrical code safety standards.

IGOR! Raise the switch! Muhahahahaaa It's aliiiiiiiiiiiiiive!!!!!!!!!!

Thanks goes to Jeff (aka LoboCNC), for it's original design: http://www.thingiverse.com/thing:649284.