okay - yet another question here - this time its about something I've done by accident before but this time I would like to try and do it in a controlled way. What it is is that I have some letters cut out on a pc of aluminium sheet that i'm laminating on to some acrylic sheet. This acrylic sheet is illuminated with some LED's. I want to accent the letters a bit more then they are (the light doesn't reflect out of the smooth side of the acrylic very easily) and was thinking that I could try and create some surface or body imperfections that would allow the light to reflect at those points. I have in the past crackled acrylic but don't remember how. I think it was flame polishing and then putting some sort of solvent on top of that.
Any ideas or alternative suggestions? I've tried sanding, wire brushes, etc. but the surface has to be very gouged to see the light.
Thanks,