The telltale signs of a bad spray-paint job are easy to spot. Stripes of uneven coverage, paint buildup in the corners, a stray hair in the finish—the list goes on. Worst of all is the dreaded ...

Another time I flew in via helicopter.” How does a princess get into painting via jet engine? She apprenticed with the prince, who developed the process more than 30 years ago. “Jet art isn ...