they're called gilo stones.
I have something of a bug up my ass about the fucking Blue Man Group, since From Scratch were using PVC tuned percussion somewhat before them.
en.wikipedia.org/wiki/From_Scratch_(music_group)
BMG may prefer "closed-cell foam rubber paddles" but they are correctly played with jandals (i.e. thongs, flip-flops).
www.youtube.com/watch?v=6JCmaoVT8pA
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Rapitinui get in the cage and I'll give you a treat, Mon 13 Dec 2010, 21:52,
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