Maxis Backpack as an accessory

[Gastalt]

Since the request was unanswered for some time it must mean it's already been made, but I not found it, so the question is where it is now if anyone knows.  If you don't know what I'm talking about, here's the pic from the game:



As for why I'm looking for the backpack...



So I you know where the backpack as a accessory is, LMK know, thanks in advance.