While watching Lindsay Rutter's webcast on DeepZoom last week, I noticed in her demo what looked like a Silverlight temporary tattoo.
Turns out that there is a such a thing, here's a photo from Flickr.
If you don't have the swag, you could always drop by the Silverlight Tattoo Studio and draw your own.
If tattoos aren't your thing, but Silverlight is, then you can check out Lindsay's next webcast today on Web Services in Silverlight ( 
) .