Jack's Septic Eye

The  is a hat block. The eye of a Bossatronio from the planet Bossatron. It still looks around even though it isn't connected to its body anymore. Weird.

It also works as a searchlight, comparable with the Venture Rally Headlight, GeoCorp Focus Spotlight, and the GSO SOS Searchlight. The light is a pale green.

''Currently, large numbers of lights cause significant FPS drop. Until further optimizations go through, keep the number of lights to a minimum to reduce performance issues.''

Background
is in reference to the content creator, Jacksepticeye, who was an early promoter of the game.