Silverlight - Examples of awesome demo applications NEEDED!

At company I'm working, new project will be started soon. I'd like to use Silverlight 2.0 but I need to convince my CEO and Photoshop/AfterEffects guy for using Silverligt for upcoming project. These persons are - let's say - rather Flash / Apple oriented, but for me as a .NET developer Silverlight seems to be proper solution :-)

I have a list of advantages from developer's point of view but I need to show for these non-technical persons any working demos .

These applications could be business applications, but the most important features are:

• fancy graphics - not a developer manufacture,
• comfortable and interesting UI,
• functionalities which are difficult to implement in Flash

Thanks.

I find that folks really like Quince:

_{(source: sparklingclient.com)}

One of my favorites is Centre des Usages:

_{(source: sparklingclient.com)}