This is a bit premature since I haven't yet actually put one of these signs on any little buildings yet>But as a proof of concept it has gone so well that I thought I'd post anyways
This "BAR" sign is on a piece of 1.5 mm thick plexxy glass about 1.5 cm long and .5 cm wide roughly 1 cm is sticking out from the "wall"
In low light
I'm planning on having a sign stick out from a 2 story building so there's some space between the street level and the bottom of the sign.....
A UV LED bulb would be hidden in the building....
Sorry for the very rough sketch(It's easy to see why I do ABSTRACT art
Forgive the "L" shapes in the following photos>I have since gone with just the straight rectangle shape but the process is the same
First I coated the piece of plastic with chrome mirror paint(for model cars) then once it drys I dip it in a second coat of shiny black paint..
As of right now I have just scratched the little letters for the sign through the paint by hand.....I'd like to try and figure out some kinda stencil or something to make the lettering look better.....