I've got one that's got Princess Leia, Han Solo and Han Solo's blaster in the bubble. The back has Princess Leia and Han Solo on it with a copyright of 1997. But the sticker on the outside says Princess Leia and Wicket the Ewok. The numbers at the top on the front are Asst. No 66935 & No. 66938. Is this any sort of rarity, or just a common error? I haven't seen this error listed anywhere.