Stuck on magnets
In the instructions for making marble magnets, you can see that I’m using ordinary magnets (from the dollar store). I found that one side of these magnets was usually stronger than the other and I generally test out both sides before deciding which side will be the magnet side and which will be covered up by the glass glob. Even though these magnets are cheap, they can hold up a couple of sheets of paper without much trouble, but if you want something with a better hold, rare earth magnets are your best bet.
But where does one get rare earth magnets? Canadian customers can get them at Lee Valley Tools, where the tiniest rare earth magnets (1/4 of an inch in diameter and 1/10 of an inch thick) have a magnetic strength of 2.5 pounds! I’ll be picking some up tomorrow and will be sure to report on their strength and superiority to regular magnets.
If you’re interested in learning more about magnets, the site provides a fairly detailed writeup on rare earth magnets.
MAGCRAFT is a US-based site selling rare earth magnets in multiples of 100 for under $10.
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