I am working on a project and need to close a connection when a flat surface is grasped. I found the plans attached, and that seems like a good idea. I was wondering if anyone knows where I could find something like that already built and order it to save time. What it is is a thin layer of plastic sandwiched between 2 layers of aluminum, when its squeezed, a connection is made. I need several of these and it would be easier to just buy them.