DSL Designer for WIX

Mark passed around a link to a cool new DSL that lets you generate the WIX for a setup project from a diagram (or model) of your set of applications. This looks like a really cool use of DSL Tools, and it's on CodePlex for anyone that wants to have a look...

This got me thinking... There's been a lot of talk about the DSL runtime itself. But, I was interested in what DSL designers are being created out there by our customers. So, if you've been working on a cool DSL let me know. And, I'll try to put together a list of the other cool designers that are out there.