Looks like a "Mittensus Sweatorius" to me!
or maybe a "Longfleeceus Knitorius" or....
He's whatever YOU say he is! What a great acquisition for your stash! Although most of us don't have to feed and water items in our stashes, we also don't get to have such a cute "shep" around either.
So enjoy, and thanks for sharing the pics and story!