#1 Is it manmade? Yes.
#2 Is it a common (>50%) household item? Yeah, I would say so.
#3 Animal, vegetable or mineral? Mineral…I think…
#4 Is it bigger than a standard crockpot (total volume, lid closed)? Around the same size…generally.
#5 Does it use electricity? No.
#6 Is it associated with food or cooking? No.
#7 Is it usually used in one specific room? No, not at all.