Assign an icon to a category post

Is there a way to assign an icon to a category post as well as the posts original image that’s set in the featured images?

So if had a post about grapes I would have an image of some grapes in the thumbnail but I’d also have a grape icon from the grapes category attached to the preview post. This is an example of what I mean http://wordpress.thebebel.com/showcase/bloggaexport/

Thanks

As far as I can see from the link you mentioned, there are no icons for categories, only avatars for authors. Is that what you mean? If you do want category icons, take a look at some plugins in the WordPress.org directory. Here’s an example: http://wordpress.org/extend/plugins/category-icons/