When I was in school, I worked for a company in Kansas that actually made a product that was basically a foot sander! I think it was called the "footsaver". The funny part is that they also made the "foodsaver." They went out of business several years ago and now their products are made by companies that actually sell stuff! When they were creating the footsaver they would take it to ladies in the office and have them "sand" their feet and ask them if they liked it! Weird!