Is a cool applicationthat can be used on facebook and idependently to send e-cards to your firends, The ability to draw custom pics for your friends or if you slightly more lazy send e-cards designed by other users to your friends, its definitly wortha look and a vast improvement on the 'Graffiti' app, with additional features suchas saving, a much more user friendly colour pallette, the ability to bookmark colours and much more.

http://apps.facebook.com/pencake
http://www.pencake.com/
http://blog.pencake.com