well........I have 4 working autoharps...my wife plays zither (getting pretty good, too!)....I have a ukelin(needs a 'little' work)which is bowed for the tune and plucked for the chords...a Marx Pianophone (needs more work)(little hammer bars strike chords as you pluck simple tunes ala a zither)...one Autoharp is a model 2 1/2 Oscar Schmidt (small) and one is a genuine Zimmerman from the turn of the century! It has only a few chord bars, but they have 'shifters' on them to allow playing the minor & 7th on the same bar.It is in working condition and a real treasure! The guy in the antique shop told me it was a 'zither'-and he had to have $27 for it...*wink*

I knew someone years ago who had a working tremeloa...weird! And I know people with all sorts of Marxophones and related stuff....