Here's one I use all the time. It has the curved edge. 
Its under Poser props. Its about 30 seconds worth of modeling.. :-)
http://onnetz.spiritbones.org/downloads/

Handle every stressful situation like a dog.

If you can't eat it or play with it,

just pee on it and walk away. :-)

....................................................

I wouldnt have to manage my anger

if people would manage their stupidity......