Yahoo! Site Explorer, Yahoo!'s Webmaster tool that details your index count and link count for your pages and site, has released badges. These Yahoo! Site Explorer Badges can be placed on your site to promote how many links you have to a page or to the site overall.
Here is what it looks like in real time:
I find it weird that Yahoo! is offering this badge. Just doesn't jive with what a search company should want SEOs or webmasters to promote. But I can be wrong - something just doesn't sit well with me on this.