nokola.com

My fellow tester from the Visual Studio XAML Designer team has a very rich and interesting website: http://www.nokola.com

One of his hobby projects is EasyPainter – an effect-oriented paint application in Silverlight: http://www.nokola.com/easypainter

Also definitely check out his blog, he has a lot of interesting things: http://nokola.com/blog

Enjoy!