Lego Duplo Action Bricks

thingiverse

Humans Develop Action Bricks for Innovative Lego Duplo Train System. Each Brick's Color Represents a Specific Action. To Execute a Desired Action, Simply Use the Appropriate Color Plastic: Yellow Plastic Activates the Horn. White Plastic Turns the Light On and Off. Blue Plastic Triggers the Washing Function. Red Plastic Instantly Stops the Train. Green Plastic Reverses the Direction of the Train.