Lego compatible animatronic eyes that only pan left and right

This is a variant of the Dasaki Compact Animatronic eyes with the tilt eliminated and lego posts added to make it easier to build with. The holes can be used to fasten the eyes to cardboard or to a Lego project.
They eyeball is combined for easier printing and if you print the first 1-2 mm in a different color, you can give it an iris. This version is assembled using 2 M3-20mm screws, 2 M2.5 4mm screws and the two pointed screws from the SG92R parts bag.
This was created for a spooky Halloween Project for the Very Useful Monsters project for the micro:bit. More information here: http://lectrify.it/pages/vum