hmm. Just a thought, but for the side with the ashtray, why not something like this...
A perspective drawing that makes that side of the chip look like it is a round ashtray with CA info between the rests. Maybe some ash and a few bands in the bottom.
No indication of tray brand, etc. just a perspective drawing. Probably from above and a but to the side, like the one pictured here:
http://img.cigarsinternational.com/l...m-soaash01.jpg. Of course you could not have a cigar resting since it would be clipped at the edge of the chip.