The Big Toe-Tappable Computer Keyboard

Remember the movie Big starring Tom Hanks? In it, he hops on a giant musical keyboard, stomping out a tune. Typing on a regular keyboard may exercise the brain, but it can almost atrophy the body. So why not have a workout workstation, where the keys are clicked with your feet? Depending on the design, you'd reach to push them -- or you'd have to hop all over the place. You wouldn't and couldn't use such a system for hours on end, but in a business, workers could take turns, increasing office fun and fitness. I'd love to work on this project with someone who has the engineering savvy.