The mere mention of "dangerous experiments" makes those interested in scientific inquiry drool with delight, because while dangerous isn't always fun to do on your own it's always fun to watch!
Large and powerful magnets, like the neodymium, are inherently dangerous because they can wreak havoc on electronics including pacemakers and other implanted medical devices, so experiment at your own risk.
Or you can simply sit back and let a guy named Brian, aka Brainiac, play with his massive neodymium magnets on video, destroying his own stuff for your science-lovin' amusement!
Brainiac has lots to see on his YouTube channel, including informative videos comparing the magnets in his collection and showing how they're delivered to his doorstep, so we can learn more about the mysteries of magnetism.
See Crazy Dangerous Experiments With Super Powerful Magnets here