Free 3D-printable models designed by Zheng3
These models don't make themselves, y'know! Throw Zheng3.com a bone by purchasing the Seej Starter Set as a pay-what-you-like download!
This little bauble englowifies a pirate skull’s eyes with an assist from a couple of LEDs and an Adafruit Trinket. You can read about the build process over at the blog, wherein one might learn of the eldritch powers of silicone caulk and why you need to watch your step around LiPo batteries.
The archive includes the Arduino code you’ll need to pulse the eyes, but ye be on your own with regard to purchasing the internals.