With a pair of Anti-Gravity Boots worn over your shoes, you'll feel taller, have more of a spring in your step, and will probably have a higher chance of getting horribly injured just by simply walking around. The Boots utilize a heavy-duty rubber T-spring that you can swap out if anything happens to it, and it transfers a bit of downward energy back into your step, sending you bounding along. The Boots claim to be easy on the joints and offer a nice workout akin to power walking (or bouncing?) for people looking for a nutty way to lose weight.
The Anti-Gravity Boots by GeoSpace sell for around $180 and are suitable for anyone 190 pounds and lighter.