Optic color needed

My question is: What colors do you mix to get that copper/goldish hue for the optic lenses. I dont want to use a clear yellow.[:D]Thaanks for your help.
Antagonist

Swanny tried a few different methods of doing this on his website, but none of them looked really satisfactory. I think maybe really thin some copper or gold paint down and lay a very very thin coat down on the clear parts, then dip it in Future again. That seems like it would work, but bear in mind, I’ve not tried this one. Check out Swanny’s website for tons of good tips though. http://swannysmodels.com/