Simplify This ~ Improving Handheld Corn Shellers

My MIT D-Lab colleague Amy Smith and others have been trumpeting simple handheld corn shellers for a couple years now, and especially celebrating simplifications in the build-process or alternative designs favoring local materials and fab capabilities... So I'm pleased to add to this emergent design mix my ultra simple build -- the result of yours truly (with much appreciated help from D-Lab mentor Dennis Nagle) banging away at an everyday tin can, just so. As I did with Amy earlier today, I dare y'all to simplify this!