That thing in The Hand That Rocks the Mabel was an animation error. Also, speaking of dreams, last Sunday night I had a dream and saw a Gravity Falls commercial and it was basically some of the main characters and Mickey and Goofy from the Mickey Mouse shorts and they were on 2 sides of a sort of forest clearing area, hittin a tennis ball back and forth that grew each time, even getting bigger than them. Bottom line, it was a dream that I saw a new Gravity Falls commercial. I told my sister in the morning, taking it as a sign that a Gravity Fall commercial (at least) was coming soon. Then, later that evening on the wiki I saw someone say they saw a commercial on Disney XD for the new shorts. I got on Disney XD and after a while caught the commercial myself! The dream WAS a sign!!!