Reminds me of a (awful hacked together) toy I put together some time ago. It randomly generates fictional companies from several large word lists. The results of these types of things are always more amusing than ever expected.
That was the inspiration :) Although Google Docs gave me the idea for the username use-case. They assign anonymous users names like Anonymous Echidna, etc.
Also a good way to name wines/beers. At least, I've long thought that there was an unusual number of them with the format Adjective Animal.
I would love to see what you wrote, but requirjng a download sems a bit involved. This is one of those things that would better as a webpage.
Well the source is available on GitHub (no download required!). As for playing with it, a friend of mine is building this module as an API, which I assume will come with an accompanying webpage :)