What do you do with that once state of the art Power Mac? Well, you could always empty the case and add a "cheap clock mechanism," in the words of our friend Justin -- who emailed us some pictures of his latest creation this morning. But don't forget the Mighty Mouse pendulum: that's what really won us over. Hit the source link for more glamor shots.Visualized: the Power Mac G4 clock originally appeared on Engadget on Wed, 26 Jan 2011 01:36:00 EDT. Please see our