I think, based on the information you provided regarding production time and material costs, $50 would not be out of line. If it were worth it to you, you could manufacture a few at a time and list them. If they sell, it's worth your while, if not, you haven't wasted a lot of time. You'll just have to endure the normal morons who claim manufacturers are greedy and price gouging, etc. whenever something sells for more than they are willing to pay. A basic high school course providing a rudimentary understanding of economics should be mandatory.
