Were you looking for something else? Check out the disambiguation page. Master Mechanic is a medium difficulty stamp in Club Penguin Rewritten. It can be obtained by filling every open socket in a level with a cannon in System Defender. Gallery The stamp being earned.As seen in a Stamp Book.Add a photo to this gallery Retrieved from "https://club-penguin-rewritten.fandom.com/wiki/Master_Mechanic_Stamp?oldid=182173" Categories: Stamps Medium Stamps Game Stamps System Defender Stamps System Defender Community content is available under CC-BY-SA unless otherwise noted.