Brad Parbs

Whoa! Rotate gives you an easy to use shortcode that will rotate your page for the user. Just use the shortcode [whoa-rotate] anywhere in a page or post. Perfect for April Fools or for joke pages.

Whoa! Rotate

Whoa! Rotate gives you an easy to use shortcode that will rotate your page for the user. Just use the shortcode [whoa-rotate] anywhere in a page.

Brooke.

Adds Cornify (cornify.com) to your WordPress. After five seconds of inactivity the site will show unicorns 
to the visitor until they interact with the site again. This was developed primarily as an April fools joke.

Whoa! Rotate vs Cornify for WordPress