[Bill4373]

I just returned from JoAnn Fabrics.  Here in Michigan, they had the Fiskars paper crimer on sale (%40 off) for $10.79.  It makes decent looking corregated aluminum foil, card stock, etc.

 

[Paul Norton]

Most dollar stores carry aluminum cooking trays, the bottoms of which make great corrugated panels for roofing or siding when run through the crimper.
 
The crimper is also great for squeezing that last drop of precious Labelle’s plastic compatible grease out the tube.