Anti-Fire Safety Canister Shelf Bracket

I'm scared to death that my printer is going to explode and burn my house down while I sleep.

I've read that these little firestop guys are a good form of protection, but I didn't really have anywhere to hang it above my printer except for maybe below a shelf... so I created a little hanger specifically designed to hold a firestop canister, and clip into a 2" thick shelf.