animatronic eyes
https://www.instructables.com/Simplified-3D-Printed-Animatronic-Dual-Eye-Mechani/ The servos in the article were sold out. Here’s another one that should work: https://amzn.to/4654H1s the link to the person sensor was blank. heres one in stock: https://www.sparkfun.com/products/21231