A custom, flexible, and advanced way to show random posts.
A Flexible Random Posts Plugin
This plugin makes it easy to flexibly add random posts to your WordPress site. It allows you to display a list of random posts via a shortcode or widget, with a thumbnail, excerpt and post date. You can also easily filter by categories and tags.
Some of the features of the plugin include:
Display thumbnails, with customizable size and alignment
Display the post excerpt, with customizable length
Filter posts by category, tax, or taxonomy
Display or hide the post date and modified date
Filter by post types and status
Add your own custom CSS class for each widget
Add custom HTML or text before and/or after random posts