pic: Bumper slices

[IKE]

Has anyone found a fast dry, easy and cheap to apply numbering method? I bought a bunch of fabric paint pens, but frankly, they do not work very well. While they do meet the "legal" interpretation of white outlined numbers, they are usually quite faint and barely legible.

Does anyone else have an inexpensive and fast method for bumper numbers?

Also, I usually only get 1 robot each year with a "cross section" issue. Usually it is using a 0.5" board or plywood instead of the 3/4".

Numbers, bumper height, and perimeter compliances (8" inimum or angle of wrap or...) tend to be the bigger issues I have seen.