A few have asked for details shots of my Jerry can holders. Here they are.
They use the existing roll cage bolts. You might need to use longer ones because the bars fit between roll cage "clamps".
Cans fit nice and snug. They're secured with metal tabs that screw onto top bar. I used Torx bolts to deter people from stealing the cans.
Cage around bottom of cans are chromoly. Rest is steel.
Feel free to copy this design. I don't hold any patents on it.