Press the green flag, and it will generate a snowflake.
I finally un-broke it, yay. This was harder than you might think to make, it took a lot of trial and error. I was going to try and make this in hopscotch with clones, but I decided it was going to be too complex. Changelog: 4-20-16 - Made it so it doesn't generate extremely simple snowflakes, but it can still generate simple ones.