Home Brewed Sound design

I had a lot of fun experimenting with sound design this LD Jam!
I wanted to take a break from BFXR and LabChirp this time, so the only tools I used were a nose whistle (aka Bocarina) and a crinkly protein bar wrapper, as well as some other odds and ends.
It was a lot of fun! How did your sound design process go in your game?