Windell's Robotic Dalek Pumpkin
What could be more frightening than spooky ghosts or evil witches on Halloween night? How about one of Doctor Who's most fearsome foes in robotic pumpkin form, which Windell (from Evil Mad Scientist Laboratories) unveiled a few years back but is still terrifying nonetheless.
The pumpkin is outfitted with two rubber wheels connected to a pair of servo-motors for movement, with a chair caster harvested for a third wheel providing direction. The wheels are connected to a blank circuit board platform positioned at the bottom of the pumpkin. A Third servo-motor powers a large plastic bearing and worm-gear mechanism to turn the Dalek's head (in one direction only), which is actually the bottom of the pumpkin with a carrot eye protrusion and ears. All three motors are connected to an onboard receiver that's RC controlled using a Hitec Focus III joystick controller that features servo-mixing (changing the thrust and steering mode).
To round out the Dalek's distinctive look, Windell used a melon baller to place the pumpkin's innards on the robot's outer casing using toothpicks. A mixer and thermometer complete the look (and are far less dangerous than real weapons and sensors), making for one frightening Halloween display.