This package is a game-changer for LaTeX users who have longed for the ability to add coffee stains to their documents. Rather than manually adding stains, this package allows users to simply print them directly onto the page, saving a significant amount of time. The package includes documentation in both English and French, and it is available under the public domain license. It is maintained by Patrick Bideault and can be downloaded from the provided repository. Overall, this package provides a unique and clever feature that is sure to surprise and delight LaTeX users.
https://ctan.org/pkg/coffeestains