Bookmarklets for WordPress
"Bookmarklets" on Android
Not technically a bookmarklet, the application Bookmarklet Free allows to integrate self-hosted publishing flows (e.g. a bookmarking tool or the like) into the default "Share" menu on Android; see Easy IndieWeb interactions on Android
Colin Morris uses a bookmarklet to find and reply to h-entry elements on the current page.
The Known CMS also offers a bookmarklet from within the "Tools and Apps" section of the settings page. It states: "The Known bookmarklet is the best way to save links, reply to posts, and share articles. Just drag the bookmarklet button below into your browser's Bookmark Bar."