Good looking skin for Open Source project

Hallo, im working on webportal introducing people from Slovakia to the World of Open Source, Open Content and Open Licenses. This will be non-profit project without any advertising and available only in Slovak language. I think that YACS is the best solution. Im looking for professional skin. My Idea is to share your already made skin with my site. Of course, there will be link to the author in the footer. Thank you.