[canehorn]

I’d avoid kazoos personally…they will disrupt the effort to make enjoyable music. You are on the right track with rhythm elements. We used to have a gang join late night jams and the pieces that let them join in without killing the mood were bongos, congas, rain sticks, acoustic bass (just have to show them root notes of chord progression), tambourines, bodrhan, and a variety of shaker type native percussion items I can’t name but have collected over the years. It’s worth the effort, good times when would be audience participates!