Doesn't surprise me, probably made out of soy in the plastic. In recent years car manufacturers have begun using soy based plastics in the wire insulation and other plastic and rubber parts. Needless to say, rodents have found it quite delectible.
OOOOOooohhh! Soy based huh? That makes sense. Need. Metal. Cans.
Gonna check Amazon and see if there are any sellers doing metal.