Any momentary contact switch and some sort of holder/enclosure for it would certainly last longer underfoot than a CD jewel case.

The old rubber door stop makes a dandy and inexpensive footswitch case. Punch a hole in the top and install a momentary pushbutton switch.

In a real emergency, you could use a doorbell button.

All out emergency, get a spring loaded clothespin and wrap the paperclips around each tip for normally closed operation, around the tips for normally open. This too will last much longer than a jive A$$ /CD Jewel Case. Heck, those things break at the hinge when you just leave 'em sitting on the shelf. My big foot would crush one on the first operation.
_________________________
"Keep listening. Never become so self-important that you can't listen to other players. Live cleanly....Do right....You can improve as a player by improving as a person. It's a duty we owe to ourselves." --John Coltrane

"You don't know what you like, you like what you know. In order to know what you like, you have to know everything." --Branford Marsalis