Does anyone know of a source for small quantities of 600, 1200, 1500 grit wet-or-dry stick-on 6" disks for a DA sander? I want to try color sanding with my DA but my supplier only sells them in sleeves of 100 sheets @ $80! To get a sleeve of 600 & 1500 will cost the national debt. There has to be some enterprising retailer out there who will break a sleeve and sell the disks individually.