If you're a bit into electronics and know how to wield a soldering iron, check out this excellent video Collin Cunningham did for Make Magazine: youtu.be/aOJuCYgmPPE
Could get some interesting sounds with that thing.
Thanks. That amplifier seems pretty easy to build. Such a little amp can help boost the dynamic range of piezos.
Yeah, just a few components, should be pretty cheap too. Nice project for beginners to practice soldering as well.
That is really useful and helpful too.