Easily allows you to designate posts, pages, attachments and custom post types as featured.
The plugin displays a checkbox in the publish meta box to feature a post. The checkbox only appears on admin selected post types which can be selected in the Settings->Writing screen.
When a post is designated as featured:
Note: For the plugin to work on attachments, you must be using 3.5 or above. All other features will work on 3.1.0 and up.