well, version 1.2 was worked out tonight. basically a 14" piece of 2"x6" with a shallow hole drilled to mount the piezo disk in and a hole just large enough for a 1/4" jack to be mounted. it worked great. there was no ringing, it had a great tapping/stomping on the floor sound. now i just have to work out the details (make it pretty).
you wouldn't think such a seemingly simple project would turn out to be so damned time consumming.
thanks for the help.
ps-i did a little more searching, and this guy
gets $150 bucks for these! what a crock!