Karla Comfort came up with the idea for the rolling memorial when she and her two other sons attended John's funeral in Portland, Ore.
"I saw a Vietnam (War) memorial on a car, and I said to my son Josh, 'we should do something like that for John,' she recalled. "He loved Hummers."
She purchased the vehicle in January and immediately took it to AirbrushGuy & Co. in Benton, Ark., where artist Robert Powell went to work on changing the plain, black vehicle into a decorative, mobile, art piece.
"I only had the vehicle for two days before we took it in," she joked.
Karla Comfort received a lot of looks and even some salutes from people when she drove from Benton, Ark., to Camp Pendleton, Calif., in her newly-painted, custom Hummer H3 March 2. The vehicle is adorned with the likeness of! her son, 20-year-old Lance Cpl. John M. Holmason, and nine other Marines with F Company, 2nd Battalion, 7th Marine Regiment, 1st Marine Division who where all killed by the same improvised explosive device blast in Fallujah, Iraq, in December.