Magnetic fields are fun. Maybe I'm just a old kid (there might be no 'maybe' about it), but I love magnets. As a kid, I would put one magnet on top of the table and one underneath it and "magically" move the magnet on top with my mind. Magnetic fields go thought other substances too. "Say, like PVC conduit?" you ask. Yes. Look close by and you may find something very attractive that could help you.
Please don't put anything inside it.
Congrats to airrooster on the FTF!