I have an opportunity to engrave a large quantity of I-Pad cases that need a permanent mark that is going to be a logo. Trouble is, they want the mark to be one color (orange). I have done some of the silicone rubber like the case is wrapped with and it actually does work nicely. Question is, would it be possible to fill the engraving with powder coat paint and re-laser to get the color? Anybody ever done this before? I know some of you have done the powder coat thing, but how about with the rubber? Thanks in advance for any advice, suggestions etc.