Gadolinium Magnet Generator.

[synchro1]

@Pirate88179,

Try and refrigerate it and see what happens. There're lots of different alloys.

[shylo]

Where is it in old TVs' and fridges, I can't afford 31 dollars a cube.
This is definately worth looking into.
artv

[Paul-R]

Can you seal it inside aluminum?
Put it in an airtight membrane.
Shouldn't be to hard to make it waterproof.
artv

Give it a coat of varnish.

[synchro1]

Give it a coat of varnish.

@Paul-R,

           Brilliant!

[Pirate88179]

@Paul-R,

           Brilliant!

Yes, or polyurethane.  It is more of a plastic so it might seal better.

Good idea Paul.

Bill