Silverlight Fisheye

Does anyone know, if there is a (free/open source) "Fisheye (Menu) control" for Silverlight 4.0 respectively a control which is similar to these examples:

http://blogs.nitobi.com/alexei/media/demos/feye1/2.html

http://www.nitobi.com/products/fisheye/alignment/

http://marcgrabanski.c开发者_开发百科om/articles/fisheye-javascript-menu

Maybe these controls are a good choice for you:

http://www.shinedraw.com/animation-effect/flash-and-silverlight-fish-eye-menu/

http://pagebrooks.com/archive/2008/08/21/coolmenu-a-silverlight-menu-control.aspx