Code Wheel - IML Security Decoder
The outer ring of codewheel contains icons of characters, that every Lucas/Spielberg fan (computer games player) knows well. There are (clockwise from top): Indiana Jones, Nurse Edna, C-3PO, R2-D2, Zak McKracken, Obi-Wan Kenobi, Admiral Ackbar, Razor from Maniac Mansion, Luke Skywalker, Darth Vader, Bobbin Threadbare, Stormtrooper, Owl from Loom (or maybe Cedric?), Fleece, ET.
Night Shift is a computer game developed by Attention to Detail and published in 1990 by Lucasfilm Games. It is a unique action game where the hero is a worker in a factory owned by Industrial Might and Logic (a parody of Industrial Light and Magic). Your character ensures that the factory is working properly as it cranks out Star Wars action figures, including those of stormtroopers and Darth Vader. The object of the game is to always ensure the factory is working properly, and to move in an increasingly better home.