lady needs help with corregated iron

Here is one I saw on Scale Autos forum.

http://www.scaleautomag.com/sca/community/forum/topic.asp?TOPIC_ID=21180

The corrugations are about 1/8". The tool is for squeezing artist paint out of the tube. I like to use the aluminum from disposible aluminum pants. The thickest I've used is aluminum flashing. The aluminum that is used for 'tin punch' in the craft stores is a good thickness. I'm out of it and I can't remember what guage it is.

I like to get the rusted effect on corrugated metal by using printed circut board etching acid. Leaves the aluminum looking like rusted steel.

That looks like a good solution.   What size are the corrugations?   What is the tool which you use?   What is the metal?

I believe that I have seen HO scale corrugated metal sheets (i.e. thick aluminum foil) at the local model railroad shop,  in the scenery building section.    If not in stock they can order it for you through their Walther's catalog system.

Heres how I do it:

http://public.fotki.com/DaveInTheHat/how-i-make-stuff/corregated-metal/

Have you tried searching through the Evergreen sheet styrene at you LHS or the model railroad kits?