Jesse: cedar? Wow! Never thought of that! Really interesting idea. And yes, I will definitely wear eye protection.

Dog: Glad to hear cork isn't all bad; I'd still like to at least give it a shot.

Jim: I don't have access to shell casings, but I definitely like the idea, along with the rest of your tips!

RHenn: Thanks for the foam info; I will check them out.

Great info, folks! This is really interesting reading!