How can I create a persistent vanity URL in DotNetNuke?

Question

I'm not aware of a solution for implementing custom persistent vanity URLs (my term, not sure if thats what they're really called) in DotNetNuke. Does anyone know of a solution? It can be configuring the core, using a third party module, or a suggestion of how to write it from scratch.

Here is what I'm thinking:

1. I want to point people to: http://mywebsite.com/awesome
2. I want the underlying URL to be http://mywebsite.com/genericpage.aspx?key=awesome&etc=etc
3. I don't want the URL to redirect. I want the user to see http://mywebsite.com/awesome only.

Essentially I'd envision an administrator being able to create these vanity URLs and specify what the vanity URL is and what the underlying URL is.