In movies and such you once in a while see a character wearing a pair of shoes that when pressure is applied in a certain way (i assume, correct me if you know better) a hidden blade extends from the tip of the footwear. Now I have no real use for this but find myself intrigued on how this would be made, and would like to try and make a shoe/boot that could do this as a project. So i come here asking if anyone has ever made something like this, or know of a website with instructions on how to do it. Any help is appreciated. Thanks alot