I take the opportunity to start creating as many icons/drawings as possible now when it is winter and I got the time. The plan is to finish them up later when I don't have so much continuous time to spend on them. These (Iodine and Indium) however was finished some time ago. Lots of unfinished drawings laying in my desktop makes it easy to find something to do.
Status rapport from me: mainly start working on new drawings, not so much work being done on finished them, and some times consumed by experimenting.
except with only the bottom less humpy curve.
Perhaps you can draw the car and make it transparent, except for the catalyst part?
Sure you'll be able do make a good drawing from one of these.