[Bob Carnie]

All my dodging tools are made that way never saw the need for any fancy gizmo's.

For burning in I use a large black both side board, I cut various size holes , one hole per board, I then tape white paper on the top and cut out the hole. This way I can see live the area I want to burn, it is black on the bottom side so no reflections bouncing back and forth.
I use my hand a lot for burning in as well.

After purchasing a commercial dodging set, I found the ones that I ended up making out of coat hangers and card stock or thin cardboard just as good if not better. Really nothing to it, almost anything works.