Chalkboard time!! (Patreon)

This weekend I'm going to be filming the talking bits for the "peroxide explosives from a plant:  ascaridole from Epazote" episode! So, lovely Patreons, what challenges/nice things/obscure things am I drawing on the board this episode??
Remember when someone requested the Bad Dragon logo and I drew it super big by accident and people constantly comment on it? Yeah. Anyway, i'm at your mercy here!! Thanks a lot! Tom