I'm making some mic cases, and need foam. Home Depot, Lowes, Target, none of the major stores seem to have them. Where did/would you get yours?

Try Uline.

http://www.uline.com/Browse_Listing_864 ... code=WE430

Or these places:
http://www.closedcellfoams.com/

http://www.foamorder.com/packing.html

this is the one and only time you'll here me recommend Foam Factory. Their stuff is acoustically useless (they even posted fake acoustic data online). But it's cheap and could probably be used for what you want.

I found a lot of interesting materials (including some rubbery closed cell foam) at a local arts and crafts scrap store. Their stuff was all discarded from factories, things used for car interiors, instrument cases, etc. Maybe your town has one.

Are you gonna take someone out?

Make sure you treble-wrap, blood can seep through at least two layers of this stuff.

Thanks for the suggestions. I have actually found all of these sites too, but was hoping there might be a local resource I haven't discovered as I want to avoid shipping charges. I live in Atlanta, somewhat regrettably.

Hancock Fabrics

or any other fabric store.

they have it in huge blocks and in rolls.

Hancock - success.
Thanks for all suggestions,

I would imagine these guys would have it. They have everything.

www.mcmaster.com