Here's my entry for day 10. Looks like I am a bit late to the party in submitting a snail (thought I was being original when I was making it haha)! On the plus side I have made my first experiment into learning COPS.
Hey everyone! Day 10 had me worried. It wasn't looking good. Fortunately, I managed to salvage it by focusing on the textures and lighting. Simple vellum cloth at 0.2 timescale on the back of a box-modeled mask, with a custom smoke solver using POPs at a low timescale to speed up the simulation instead of re-timing actual smoke. Enjoy!