Scythe has announced a new USB foot switch for computers that let you map controls and buttons for your feet to activate. I can see these things being popular with gamers looking to activate more commands at once.
The switches are available in single, dual, and triple setups and support Windows. I used to have something similar and it was cool to map controls for shooters to the pedals like jump or activate commands.
The triple switch version is 130 x 360 x 37mm, the double is 130 x 201 x 37mm, and the single is 120 x 67 x 34mm. The maker says the switches are good for a million activations. Pricing is unknown at this time.