Master Magnetics 07239 Original Cast Alnico 5 Cow Magnet, 0.50" Diameter, 3" Length, Silver (Pack of 2): Toy Playboards: Amazon.com: Industrial & Scientific
Dremel Model 4000 - 4200 Rotary Tool Holder Fits Bench Vise USA Made PN DH-4000V 720171926021 | eBay
Amazon.com: Tonerider Alnico IV Classic Vintage Neck Humbucker - black : Musical Instruments
Amazon.com: Red Cast Alnico 5 Bridge Magnet With Keeper, 1.77" Wide, 1.18" high, 1.18" Thick With 0.20" hole on top (Pack of 1) : Industrial & Scientific