If I "thought" about making some, I would, but I wouldn't let it get around and thats the key.
The last time a buddy and I thought about making some, if we had we would have kept it quietly for are own enjoyment. We thought we could probably make some out of taters and a copper tube running from a pressure cooker down through a coffee can where the copper would coil and be covered in ice. I still think it would have worked, pun intended.
But who knows, maybe not.