I already had an old tripod which I bought years ago at Goodwill for $6 or $7 --- I never was able to use it much because the screw attachment didn't fit my camera ... I took the screw out, leaving simply a hole in the plate.
I cut a small squarish piece of wood & drilled a hole in the center, then got a bolt & wing nut so it could attach to the tripod through the hole in the plate.
Then I just screwed the mini-display easel to the block of wood (after pre-drilling) and voila! a pochade easel that will hold 6X8, 8X10, and 9X12 (horizontal) canvases!
I also made an easy brush holder simply by cutting notches in a shoebox lid.