I was looking at this stuff online a few days ago, it comes in different colors and physical qualities. It starts at around $20 for 500 ml on Amazon, might be even cheaper from Wan Hung Lo if you are willing to wait on the slow boat from China. Seems like having a few different colors and more or less rigidity might be something to explore. I'm wondering if anyone has messed with it? SilverCreek, this looks like it should be right up your alley, what do you think?