I'm going through my stash of neon bits and I have a blue neon octagon about 14" across that I want to make into a lit sign for the makerspace window. I can supply the neon, high voltage bits, timer and the mounting box but I don't have the materials to shape the inner lettering in neon, so the idea was laser cut the letters, apply an opaque sheet and put red or orange LED's behind that.
These were my two ideas. Ignore they are hexagons. MS Paint doesn't have an octagon tool....