Ok, maybe I was just in a really good mood when I watched it. I dunno, I don't really want to debate it because I don't want to ruin one of the few episodes I've enjoyed this season.
And yes, I do think Marge chasing and not being able to catch a slow moving, farting wind-up toy is hilarious. Also the best part was how at the beginning, Marge said "I hope I didn't stumble upon my anniversary present..." kind of sarcastically. And then at the very end, Homer revealed it was her anniversary present, and she rolled her eyes. Following through with jokes within episode is something they tend to not do much anymore, instead, opting for lots of unrelated side humor from secondary characters and whatnot.