I'd like to help, but I'm a terrible artist and an even worse 3-d modeler. The only way I could help is if a 3d model of your character already existed, then I could get it into Alice.
You could try making it yourself. Any of these four free programs would be ideal:
-Sketchup (simple, powerful, popular)
http://sketchup.google.com/
-Blender (VERY powerful, much more complicated)
http://www.blender.org/
-Smoothteddy (probably the simplest)
http://www-ui.is.s.u-tokyo.ac.jp/~ta...ddy/index.html
-Truespace (powerful, video tutorials on website)
http://www.caligari.com/downloads.html
Best of luck.