Wikimedia Commons has media related to Wikipedia WikiProjects.

This is a maintenance category, used for maintenance of the Wikipedia project. It is not part of the encyclopedia and contains non-article pages, or groups articles by status rather than subject. Do not include this category in content categories.

This category contains Wikipedia WikiProjects – those defined in terms of a particular Wikipedia maintenance task or other Wikipedia-specific matter, such as stub-sorting, copy-editing, spam-fighting, template-coding, or bot-organizing, rather than a proper encyclopedic subject area, such as architecture. If your project deals with a particular content area, such as art, culture, environment, geography, history, humanities, science, society, sports and games, technology, or travel, please do not place it in this category. Instead, please place all such WikiProjects in the appropriate subcategory of Category:WikiProjects. The projects are presented in two sections: "Subcategories" and "Pages in category 'Wikipedia WikiProjects.'"