Fuel Cell foam?

I have a cool old aluminum suitcase that I'd like to use as a tool box in my hot rod and I've been looking for some type of foam similar to what they use in fuel cells that I can carve so the tools sit in there without rattling around. Haven't found anything yet and I wonder if anyone knows where this stuff can be purchased. Thanx

 

check out sears

****sman has the foam inserts for toolboxes
i have some in the corner because i dont have the patience to trace my tools

 

Check out custom gun case manufacturers such as pelican etc. You can get replacement foam from them in different sizes that are pre scored.

 

I lined my ammo box with dyna mat. works great

 

any fabric store has it, all diffrent density closed cell or open cell foam