Their tagline says: Make Art from Twitter(and then buy it!). Twitter Mosaic is another nice tool by Sxoop and is real fun and easy to use. You can use it to create a Mosaic of your Twitter Friends or Twitter Followers.
The only qualm can be that this is not secure so I can print anybody's mosaic and tout it as my own. But on the brighter side its nice. You can also buy personalized stuff.
Here is a mosaic of my followers:
Enjoy Twitter Mosaic...
