Quantity   Component name
1 × Mannequin arm Hollow plastic arm from Amazon used in jewelry store displays
1 × Ouija board Laser cut on wooden plank
1 × Planchette Laser cut
1 × Adafruit Crickit Used for servo/light control
1 × Raspberry Pi with 3.5" TFT display Used to interface with Twitter and display messages
2 × Servos One for the arm, one for the planchette
2 × Neopixels Used to provide an eerie flashing effect when the letters are shown