NAPA Autoparts (at least the one by me) can mix the paint & thinner and load it into a pre-charged aerosol can for you. The NAPA here has a minimum order of 3 cans.
'05 Sonic Blue GT w/ '07 V8 engine, 5-sp, IUP, Beige leather interior, nothing else -
just the way I wanted it. (1 of 113)
OK, so I've added a few things to it. Check my Profile - too many to list here.