Gave mine to my nephew who put it over his bar and he turns it on when people drink too much. Didn't have a big hole to worry about so I just did some body work and filled it in.
Sold mine at a garage sale for $20. Put a random sheet metal cover from some appliance over the hole with some caulk and called it done. It looks like it belongs there, like it's some kind of compartment, as if it's a cover for some functional item, but in actuallity it's just a patch.