By mixing gypsum into a henna tattoo, the tattoo can be nonpermanent but still have a strong color, and also will glow blue under UV light, for extra fun at parties.

Other iterations include calcite (red/purple), Willemite (greenish), or fluorite (again, purple).
-- shapu, May 24 2006

I'm all for this idea, but I have to engage in - Vanity_20in_20Vein
- a shameless self-promotion [normzone, May 24 2006]

highlighter tattoo. Gypsum =/= henna.
-- sninctown, May 24 2006


[+] Can you make 'em holographic?
-- kuupuuluu, May 24 2006


Probably.
-- shapu, May 24 2006


Very nice. A bun from my daughter (the henna queen), too. She's a gifted artist. I bought her a kit last year and became the first canvas. She put a croissant / fishbone yin-yang on my shoulder. This would go over big.
-- Shz, May 24 2006



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