I don't, but we tried to form a rock band when we were like 10 years old. Never did even get a guitar. ^^
I love that there are so many musicians here! And to the original poster, Jew's harp is an awesome instrument, BTW. I play french horn, piano / keyboard. In the past I learned steel drum / steelpan (soprano / lead), clarinet (briefly), and I made some noise on a violin just so I could get a feel for how the instrument worked, so that I could not be totally naive when writing parts for stringed instruments. Instruments I'd like to learn some day include banjo, bass, and chromatic harmonica. I also would love to build a microtonal instrument, preferably in 31 equal temperament, but maybe 19 or 22 as well. I've done some stuff on my computer in other tunings and it's fun.
Yes! Guitar and bass for 21 years. How's the playing going for you? If you ever need help, let me know! Cheers, Eric