I made a serviceable little wet panel carrier for the 6" x 8"s that I use with the small cigar box pochade out of scraps of birch plywood. It holds up to 8 panels back to back in four slots, which I hogged out with the table saw and cleaned up with the Dremel tool. The top is held on with Velcro.
I didn't know what this thing was, just that it took the late afternoon light nicely standing by the side of the road. After some Google sleuthing, I think I can identify it as a side dumping silage wagon, or dump wagon. The diagonal tube across the front is a hydraulic piston that lifts the hopper up and pivots it over the top of the horizontal frame to dump the contents.
