I used to be a chemist, but these days I rarely dissolve, precipitate, or distill. So I was excited to have this excuse to do some dissolving, but I wanted to turn the task inside out. I selected polystyrene (styrofoam cup) as the thing to dissolve, and put some ethyl acetate (acetone free nail polish remover) into the cup. Although I did not use enough solvent to dissolve the entire cup, I did dissolve the bottom part of it. Also, I wrote the chemical structure of polystyrene onto the cup using nail polish, which also contains ethyl acetate, so the ink dissolved some of the cup too.