Alexa and Google PageRank plugin

I’m looking for a plugin to display both Alexa Rank and Google PageRank. I’ve checked out the plugins in the codex and they didn’t seem to be quite what I’m looking for. What I want to be able to do is add separate instances of the Ranks to different posts. I need to be able to specify an external URL for each separate instance.

Does anybody know if a WordPress plugin like this exists? If not, has anyone seen some scripts that will do this? I’m looking but all the scripts I’m finding just display the pagerank for the site they are installed on.

Here’s the site I’m working on:

https://weirded.us

Thanks in advance!