I debuted it this past weekend at Atlanta BrickCon and it won the Master Brick award. There's a round gear on the toast that engages a straight gear on the front carriage as it goes down. It locks in place with clips and turns the light bricks on when it reaches the bottom. When you press the button, it moves the front carriage to the side, disengaging the straight gear. That also bumps the toast, releasing the main carriage, sending it back up without rotating. submitted by ...