I don't think this will stand up to much abuse, but for some it might be handy for taking tools to an event:
Use washer stacks next to the handles to create grasp cut-outs.
Recommended product is "Great Stuff" by Dow Chemical
Otherwise it is layout and Forstner bits in hardboard (Masonite®), a jigsaw, filing, and a protective coating.  Or Photocopies lacquered to pegboard :-)