re: I just made a Mini Forge!

I used an old empty paint can that I cleaned up. OPTIONS: If your don't have this then you could go to a recycling depot if you have one and get it for free... or ask a neighbor ... or look at what people are throwing away on trash pickup day. 
Another option.... don't make this and use refractory bricks instead. They're pretty cheap at HD or at least they used to be.