I get mine at http://www.armadilloclay.com/

MAGNETS: Work especially well on refrigerators. 1/8”,
3/16” and 1/4” are mighty mini magnets.

1/8” $ .10/ea. $ .09/ea/doz $ 8.00/100
3/16" $ .10/ea $ .09/ea/doz. $ 8.00/100
1/4” $ .15/ea. $ .14/ea/doz. $ 12.00/100
1/2” $ .20/ea. $ .18/ea./doz. $ 16.00/100
3/4” $ .25/ea. $ .23/ea./doz. $ 20.00/100
1” $ .50/ea. $ .45/ea./doz. $ 40.00/100