I did paint the Q's. 3 coats of Rustoleum Ultra on the lids and the plastic with the control knob. Saw someone else here had done it, and the paint was chipping on one of mine anyway. They came out excellent IMO.
The older bags were leftover from the Kingsford coupon sale a couple of years ago. They were buried in the corner of my garage and I had forgotten about them. Fortunately, they were stored in garbage bags so no moisture issues. They were $2.08 each with the infamous Kingsford Pork coupon.