We’ve mentioned the gorgeous work of thirteen23 previously when Duncan mentioned their Flickr and Netflix apps, and also as part of Laura’s in-depth look at WPF with Tim Sneath. The cool kids from Austin were also at SXSW showing their work off to Scoble, which encouraged us to have another look at their site. De.collage is one of their older apps, but that shouldn’t stop you from playing. Do yourself a favor and download the app, and be sure to follow the instructions to twist it into your screensaver. You’ll impress everyone nearby with your appreciation of fine art, as well as the sweet 3D effects your Vista machine churns out.