I would so do this if I had green construction paper.  That’s just how much of a fool I am 😛  I became bored at work today and during my break I googled plumbob.  Came across a pretty cool tutorial that explains how you can create your own plumbob out of paper for either cosplay, a convention, halloween, or for every day use if you want people to stare at you funny.  I am saving this information for the next time I visit the Maxis Headquarters or when TS3 is released!  Find how to make your own at eHow