My first project was making the smoke different colors, which is really all sparkle and no substance. It's very easy, though, so if you want something other than the standard white-gray or Signor Auditore's red, let me know. Blue, purple, yellow, or green would be a simple matter.
It's hardly a challenge, though. I need something to stretch my mind with. I was thinking maybe the loud noises first. I'll need a good-sized sheet of thin leather, and a pound or so of vellum.