I have literally hundreds of plastic ocarinas, whoopee-whistles, fowler-calls, bird calls, cuckoo calls, ducks, owls, warblers, whizz-sirens, tabor-pipes, penny-whistles, Chinese tweeters, Swiss warblers, fart whistles, reed-horns, fog horns, pan-pipes, recorders etc

Those little flat semi-circular rubber things with the flat metal bit in the middle that you stick on your tongue and make a really piercing whistle* - have you ever got any use out of one of those?

*It does, I mean.