tutorial
http://active.tutsplus.com/tutorials/actionscript/quick-tip-easy-shape-creation-with-uniqueshape/
Library
http://www.libspark.org/wiki/UniqueShape
Shape 之一覽
http://whirlpower.net/documents/uniqueshape/document.html
當然可以 extend 佢 d 野 畫d 複雜d 既野~