POTPOURRI
'(<a href="http://www.j-archive.com/media/2008-02-13_DJ_07.jpg" target="_blank">Kelly of the Clue Crew performs an experiment.</a>)  Some clay, a very sharp pencil & a horseshoe magnet will make a simple one of <a href="http://www.j-archive.com/media/2008-02-13_DJ_07a.jpg" target="_blank">these</a> devices--you don't even need a needle'
a compass