Christmas shopping or a Christmas present itself...?
Here's a rare Christmas themed Sonic bag. Was it some kind of store offer to get shoppers in time for the holidays? It has an unusual art of classic Sonic dressed in a Santa Claus type suit, with bag of toys. He's shown entering through a window (better than a chimney, maybe?) Look at the single reindeer pulling the sleigh outside...it's empty.
This bag could be aquired somewhere in Japan.