Hi, I'm new to this but am looking to make a cool set of first scales and could use a bit of advice. I know, it's probably a bit ambitious, but what the heck - I'm looking to model the scales off the mask of Rorshach in Watchmen; for those who aren't familiar with it, in the book it was composed of two layers of transparant material with two immiscible liquids, one black, and one white, sandwitched between them, creating an ever-changing pattern for the mask. Does anyone know of two such liquids, preferably relatively easy to obtain and having slightly different densities, or the best transparant material to use for the casing? I'm currently looking at polycarbonate, but am very open to suggestions.

Thanks,
Mitchell