I'm trying to find out if this is possible.

A pad like that of an electric drum set.... that i can stomp on to trigger a sample without any delay. Is this possible? I wasn't sure how to look this up because I'm not sure if this idea was mass produced already or not. Any help would be greatly appreciated.
It's similar, I was looking to make my own, or modify an old electric drum set of mine. I don't know what I would need to reprogram a sound to a pad.