I'm not in the league with most of the posters here, but here's our list:

6 foot Steinway grand piano (My Beautiful Wife's pride and joy!)
Yamaha electronic keyboard
Ramsey Special 5-string banjo
Kent 5-string banjo
A no-name baritone uke
Montana M-16-4 classical guitar
Lee Oskar "C" harmonica
    (which I've more or less given up trying to learn to play.)
An English guitar (cittern) Note: That's not "a Spanish-type guitar made in England", but a pear-shaped, flat-front-and-back six-nylon-string "English guitar", tuned EADGBE). I bought this as a "travel guitar".

Wow! That's several more than I'd thought of off the top of my head!

Of the above, only the piano, the Ramsey banjo, and the classical guitar get regular use.

Dave Oesterreich