I did this once (for stage, not print) using that FABULOUS gold powder that Mehron makes. When activated (with like LiquiSet or the like) it's like liquid gold. To do the hair, I mixed it with a non-alcohol gel. Lost some hair movement, but no where near as bad as those temporary sprays. Apparently Mehron now has an online store. This is the page with the powder so you can see it. Scroll about mid-way down the page.

www.mehron.com/retail/category.cfm?Category=21

- Tania :)