Christopher Su

BBCode Widget Titles is a very simple, lightweight plugin that allows for the use of BBCode in styling widget titles. 
It currently supports the [b], [i], [u], [s], [url=], and [color=]. Simply install the plugin and BBCode will be 
parsed in widget titles.
This plugin has been tested to work up to 3.4.2. Please <a href="http://christophersu.org/contact/" rel="nofollow ugc">contact me</a> if you experience any problems with this plugin or have any questions.

BBCode Widget Titles

Allows for the use of BBCode in styling widget titles. Supports [b], [i], [u], [s], [url=], and [color=].

utdemir

With this plugin, you will get two links; One link for the image, and one link for the redirect page. Then you can use these links in a forum signature like this:
[url=example.com/wp-content/plugins/p2i/1.php][img]example.com/wp-content/plugins/p2i/1.png[/img][/url]
It also supports shortening the url’s with “is.gd”.

WP-Posts to Image Plugin

Let's you show your blog's last posts on a forum signature or stg. uses bbcode.

BBCode Widget Titles vs WP-Posts to Image Plugin