nord_tramper

This plugin allows you to show random images with links to your posts in any place of your website. You can adjust count and size of images, add/delete images using admin page. 
Also you can import all images from posts with preview automaticaly (no duplicate if you already have some image+post pairs added). 
You can see the example in the header of <a href="http://lifelongjourney.ru" rel="nofollow ugc">http://lifelongjourney.ru</a>
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ntp-header-images

A samll and lightweight plugin for showing random images with links in any place you want.

Ryan Street

Now you can showcase custom headers for each category inside your Twentyten theme. It will still allow you to have a custom header for all other pages and still allows the use of page specific custom headers.
Basic Information
<a href="http://www.coolryan.com/plugins/twentyten-advanced-headers/" rel="nofollow ugc">Plugin Home</a>
Plugin Reference
<a href="http://www.coolryan.com/advancedheaders/" rel="nofollow ugc">Development Blog</a> | <a href="http://code.google.com/p/twentyten-advanced-headers/issues/list" rel="nofollow ugc">Report A Bug</a> | <a href="http://code.google.com/p/twentyten-advanced-headers/source/checkout" rel="nofollow ugc">Source Code</a> | <a href="http://code.google.com/p/twentyten-advanced-headers/w/list" rel="nofollow ugc">Wiki</a>

Twentyten Advanced Headers

Add custom twentyten headers for each category!

ntp-header-images vs Twentyten Advanced Headers