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The Plumber's Cap was contributed to the Steam Workshop under the name "Unlicensed Plumber's Cap".
Main article: Paint Can
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- The Plumber's Cap was added to the game.
- The Plumber's Cap is a reference to the fictional plumber Mario, who appears in the Mario franchise and other Nintendo titles. Notably, Mario's hat has an "M" in the center standing for Mario, whereas the Plumber's Cap has an "E" in the center standing for Engineer.