When I do Blacksmith demonstrations at folk concerts, I always end up hitting Red Hot Metal on the Anvil in time with the music. Even get a round of applause now and again for a particularly interesting syncopation.
The other strange percussion thing I have at home is a bean pod. Not sure where it originates from, it's about 2 1/2 inches wide by 14 inches long and has the dried seeds inside, which are loose and rattle.
JohnB