As seen on Fail Blog, in their Win category. An old-school bolt-action rifle carved around the actual bolt lock of a bathroom door. Someone claims it’s a Mosin-Nagant carbine. I agree, specifically the Mosin-Nagant Model 1944 carbine:

Sure, it’s not a perfect copy, but it’s pretty damn close. But I’m always open to being proven wrong, so if you have a better idea of what that rifle could possibly be a carving of, there’s a comment section waiting for you.