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Please get well-acquainted with the Worm Jeff mythos, otherwise this won't make any sense. laserpotato.deviantart.com/art…
Jeff Eyes are little creatures, produced the current Jeff The Killer after Worm Jeff completely takes over thier body, which act as "security cameras" for him/her. They typically only live for a week or so, and require a lot of energy to generate, so Jeff rarely uses them. Like Drones, they are easy to kill. They instantly perish when the current Jeff is killed or badly injured, or when he switches bodies, crumbling into dust. The only evidence left of a Jeff Eye after its death is some hair and skin flakes, whose DNA always matches that of whatever Jeff produced them. Dummy Jeffs can only produce these when Worm Jeff re-attaches to them.
As you can see by the inlay, a Jeff Eye flies by rapidly rotating its "topknot" like a helicopter.