I appreciate all the suggestions. The idea has taken root in my mind and there's no doubt I'm going to be doing some experimenting! I was kind of hoping to have some suggestions to go by from others who have done this so I could avoid mistakes that cost money. What I'm thinking of is getting a Doubek. I like the sound of it and even if I don't find a way to set it up with a foot pedal control I can play it along with some songs. I've decided against a bodhran - I want a different sound. Then I think I'll start experimenting with bass drum pedals to see if I can attach one and operate the doubek with my feet. The board idea is interesting, too. You could probably put taps or something on your shoes and change the sound to give some variety. I'll certainly let everybody know how my experiments turn out. Meanwhile if anybody has more ideas.....