Is there an easy wasy to search for sites using twentyten?

Hullo there

I’m building a site based on TwentyTen and looking for inspiration.

I’ve looked at child themes and I’m probably going to use the ‘accessible’ one and modify that one. Add a logo, change where the nav bar is etc

If I’m checking out sites that have used a theme I can usually search Google on the footer text. But with Twenty ten there’s no such theme credit (maybe this is a recent thing, I’m a bit out of the WP loop?)

Is there a good way to find sites that have modified TwentyTen?

Grateful of help!