"Magnets can very easily break your arm"

How about a few of these Neodymium magnets in your stocking this year?

Two of the 3" x 1" supermagnets "can very easily break your arm if they get out of control." "If carrying one into another room, carefully plan the route you will be taking. Computers & monitors will be affected in an entire room. Loose metallic objects and other magnets may become airborne and fly considerable distances - and at great speed - to attach themselves to this magnet."

Haha...just think of the fun you could have with these :-).

In case you're also running short on radioactive isotopes or nuclear spinthariscopes, you can pick them up from United Nuclear as well...