I watched a guy paint his car in the street in front of his house with a pea green flat latex paint years ago. The brush marks made it extra special. I didn't check to see if he had vise grips.
I have vise grips I bought about 55 years ago to work on my bicycle. Some of the chrome is worn off where is use it as a hammer but it's still working fine.
Wonder if we know the same guy (not sure about the latex part, though). As an added feature, mine gave it a vinyl top.....with undercoating.
Years ago I watched a neighbor paint his car with a vacuum cleaner. It worked ... sorta.
I can top that. About 1954(I was in high school)I saw a guy paint his pickup with one of the old fashioned fly sprayers, you know, the kind you pumped by hand, before spray cans were popular. He wanted to avoid brush marks and didn't have money to pay for a paint job(common with people I knew back then, including my family)so he used the fly sprayer. It wasn't too bad except for the orange peel effect,but no brush marks. Paint was a good quality auto paint, red in color.