Seymour Duncan Pickup Revival
I snagged a SD Rickenbacker bass pickup off eBay for $5. The magnets had been
pulled for a different project, thus the cheap price. After getting it, and looking
around at some craft stores, I found these magnets that were the right thickness.
I had to trim a bit off the end one to get them to fit, added a bit of superglue to hold
them in, and it worked great!