I think it's cute! And I mean cute in a negative way(don't want things getting lost in translation). Cute:...as in cheeky, irreverent and frankly, quite unnecessary. Like how an uninvited derogatory comment can be 'cute'.
I do love fur muffs, but I thinnnk I'd rather have the actual bag Muffs are always a bit more formal to me, so seeing a "casual" handwarmer/muff is a bit odd ^_^
For sure, then what do you do with the muff once you're inside? It looks to big to put inside a Kelly for example! Haha that would be funny, to have your Kelly muff tucked inside a big Kelly bag