database driven CSS?

[eluser]kwhitaker[/eluser]
Good afternoon all,

I'm writing an app that needs to let the end user input custom CSS for an item, and then have it called via a query.

Now, I know I could embed the styles into the HTML, but that goes against my anal-retentive-standards-based-to-a-fault methodology

Is there a way to link to something like styles.php?css=some-number in the header, and then the styles.php could pull data from the DB based on that number?

Thanks!