I have no excuse for not figuring it out faster, but I really tried to make 56D be DEN. I looked it up just to be sure I wasn't remembering, but yeah, beavers don't actually live in dams; they live in a lodge or den.
Nuddy buddy sounded close enough to Nutty Buddy that I thought maybe I just didn't remember a weird brand name spelling instead of fixing what I should have caught faster. Especially since "ester" definitely didn't look right. :)