New DIY tool

Awhile back I had read about magnetic clamping on frets.com, and decided this gibson would be perfect to try it out on.  I bought 50 1/2"x1/8" Neomydmium/rare earth magnets on ebay for about 20 bucks.  These little fuckers are pretty ridiculous.  Just one is enough to hold up a steel hammer. 

Instead of wasting precious time casting liquid acrylic into molds for this, I just bought an 18" 1x1.25" scrap of plexiglass and cut and drilled it myself.  Took about an hour total to make 3 pairs with 6-8 magnets per caul, and since these are permanent magnets and don't wear out like Alnico, these will surely be used in many jobs in the future.