Alnico magnets to purchase from here. Going to buy another set to test how they repel when stacked. At the moment the magnets when placed on a board do not repel as much as I would like. I'm hoping by stacking them less of the magnetic force will be carried to the magnetic board. $12.95 x 8 = ~$104 (not including shipping).
The magnets are not as finished as I would like, and are stamped with N and S representing the north and south poles of the magnets. I plan on using plumbers putty to fill in the stamped letters. I will also dip each stacked magnet into Plasti Dip (~$10) to create a rubber coating on the magnets and make them more finished.
Found a tutorial for rubber coating magnets here. The internet is great!
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