Show blogroll links only as thumbnails/logos

Hi.

I am currently searching for a solution to this problem: I want to display my blogroll ONLY as pictures/logos of the linked pages. Something like a tag cloud but with pictures linking to my favorite blogs and pages.

I am using a twenty ten child theme.

Already tried to add the picture link in the advanced edit area of “links” but then the url still shows. I do not want that.

Any ideas or plugin suggestions?

thanks