Gobo Material

I'm looking for a material that's easy to cut to specific shape(s) and is readily available in the UK to make Gobos. The material must be able to stand the heat coming from Elinchrom BX 400 for about a hour of pretty much continuous shooting. If no material exists then I'll work around cooling periods.

Any ideas other than black metal?

Thanks.

In theatre, I've been known to use alfoil folded over several times. Really cheap, easy to make any shape or pattern you like, can make it to fit any size light, stands up pretty well to the heat and is quite disposable.

I couldn't see it not working out at least as well for photo studio lamps.

Do you mean something like this?

http://www.lxstore.com​/product_details.php?p​=1876

I think you are right.

Can you get black CineFoil?

Faolan wrote in post #6903154
Do you mean something like this?

http://www.lxstore.com​/product_details.php?p​=1876

Faolan, that is exactly what I mean when I am doing pro shows. But when lighting shows with a much smaller budget (say, local community theatre with a $400 budget for the whole show) I might use something like this: