Parts list:
(1) Severed doll head with eyes/mouth drilled
(3) LEDs with resistors (I don’t remember Ohms)
(1) tin box (like Altoids, but this one was Fisherman’s Friend)
(1) Arduino Uno
(1) 9v battery (with barrel jack to Uno)
(1) L298N Motor Drive Dual H Bridge DC Stepper Controller Board Module
(1) DC Motor with an attached worm drive to reduce the spin speed (I could only PWM just so low before it refused to spin the motor – I’ll look for motor details – something I harvested out of a discarded consumer electronics device)
(1) Arduino Mega (just because it’s what I had handy)
(1) USB power bank (to Mega)
(1) 9v battery (to power motor via L298N)
(1) X-Large fountain drink cup (with lid) from QuikTrip
(1) bag of dry pinto beans (adding weight and rise to inside of cup)
LOTS of hot glue
Lots of 24 gauge wire
EDIT to add: The motor is labeled as RF-370C15370. Looks like I likely got it out of a CD/DVD player.