Anyone here paint cars as a hobby?

Thanks guys. Good info so far.
Last year, I wanted to paint my old beater pickup, but wanted to use the paint that I had on hand. I had about a quart each of B-5 blue Omni. One was single stage, the other was base coat. I mixed them and ended up with a semi gloss sheen. No problem for me because the truck is used for hauling and various dirty jobs.
I have a few cans of clear coat around here, a few ounces apiece. Deltron, PPG, Shopline and EuroCoat. I'm tempted to blend them and see what happens.
No matter what, I'm sure that my eyebrows will grow back. :D