One ukulele is good, two is OK but when you get any more it's a cacophany, we regularly get up five ukes in our local sessions, all in tune, all playing in time together, all playing the same chords, all sounding feckin awful together, it's definately the player not the instruments.

If you don't like piano accordions [ I don't ] you should listen to Karen Tweed, she manages to make it sound wonderful.

I agree with Mandotim about banjo mandolins, bleedin awful, I also have two of them, they havent seen daylight for many years.

eric