Well my friend showed me there are some clever tricks you can do to make other sounds (like massaging the upper part to make the whole thing vibrate), I guess with enough virtuosity you don't get bored too soon :)
The list is missing a washboard. Not that I use one or anything, though I have discovered my lamp shade can be used as one. So I guess, really, the list is missing washboards and lamp shades, since I'm probably going to eventually drop some lamp shade into a track. The list is pretty biased against random objects laying around my house that could be turned into instruments at any moment.
you're close to disrespecting my lifestyle here. If it's a list where you can choose what instruments that was used, surely throatsinging would be one of them. as circuitbent electronics would be.
actually, friends have asked me, "do you have to look ugly to throatsing?". and if you think the wikipedia list should be the norm then you think "Death Growl" should be listed as an instrument. :-j