This is one example of the brush holder used with a simple 1/4’ plywood board. It is clipped in place with common binder clips. The Kilimanjaro paper sketchbook is also clipped on. The small palette box is brass and uses a 3D printed “frame” which is also clipped to the board. Under the board is a small block with a T-nut, allowing the board to be attached to a tripod.