Crap Gadget?: Brando Triple USB Foot Switch
Taking cues from an organ and a sewing machine, this USB footswitch lets you control 3 of your inputs with your itchy trigger feet. Totally programmable, you can add more switches if you need them(?), but there are unfortunately no sound effects (besides your own) associated with each pedal push.
Plug and play with no drivers necessary, this USB peripheral would be a weird addition to your set-up and probably a waste of $45. The choice is yours.