oops forgot to mention that. yes its for sketchy physics. here is a link to a clip that shows what i am talking about: http://www.youtube.com/watch?v=eZFAjw3kJiM i have also seen drawings and files in 3D Warehouse that uses the magnet to act like a black hole and the like. just to give you an idea of what i am talking about. i think this magnet might be a type of joint if that helps at all.

so i have been seeing a lot of vids and files of people using magnets in their drawings. basicly where can i get the magnet and also how do i use it. i have downloaded a few drawings that use the magnet joint in them but i cant figure out how it works. any and all help appreciated
thanks