The Java mascot, Duke (shown here as part of the
NLJUG logo), was open sourced by Sun as well as Java. There even is a special
project page on java.net. Sun is usually very strict in their logo licensing policy, but the Duke is now officially free to use. As stated in the FAQ on the project page, you are now free to use the Duke in web sites, commercial software, merchandising, etc. There are even some image files and 3D models provided. This opens some new possibilities for our Info Support Java goodies at the next conference! ;)