At summer camp—there’s a horn solo in Liszt Les Prelude. People in the orchestra supposed to throw pennies at the horn player. Camp has been around since the 1800s. Heard about it from other people in the orchestra, but I never saw it happen.
This took place at the informant’s high school, Interlochen.
This seems like a really bizarre tradition, and it’s kind of strange that it was talked about and passed along by students, but never followed through during my informant’s time there.