KELPHORN
a dried piece of bull kelp from the beach with ends cut after drying. Mouthpiece in the small end, hole in the ball makes a bell. Makes a shofar-like sound, and like other instruments, can get limp from too much playing with.
Also have a banjo around here the daughter made at a workshop several years back, made from cardboard (square sounding box) mounted on a lawn sign stake, with tuning pegs pounded into it, bamboo skewer frets and fishing line string. The question is not whether it is a musical instrument, but whether banjoes are.
Blessings,
Barbara