Donate Ribbon places a black “Donate” ribbon in the upper right corner of your blog with the option to set the link and link title.
Rickroll changes all of your embedded YouTube videos to Rick Astley’s “Never Gonna Give You Up.”
Exploit Scanner searches the files on your website, and the posts and comments tables of your database for anything suspicious. It also examines your list of active plugins for unusual filenames.
HTML5 MP3 Player with Playlist allows you to easily use the HTML5 audio element to enable audio playback in most browsers, with playlists.