He didn't ask for your opinion. He asked if anyone has done anything to them to get ideas. Is there really a need to rain on his parade? Thanks for your opinion....:mad2:
Back to the op, I have Plasti dipped mine with black and glossifier and they held up well off road. I am probably going to sand them down and do a paint job on them after a trip to the red rocks in Arizona. I have done this in the past with previous vehicles and they hold up well. If they do scratch, they are fairly simple to repair.
I wouldn't powder coat them because I think it doesn't make as much sense for sr5 wheels since they are 7" wide. Might as well upgrade to some new wheels for roughly the same cost.
New rims (800-200 for selling your stock rims = 600)
Powder coating rims = 400
Hope this helps you on your ideas and look forward to hearing on what you decide!