I go to the local office supply store and just buy pink erasers. I turn them on their side, put them in a vise, close the vise, and press out the plug by using a .357 or .44 magnum shell. Or you can just cut them into squares and round them off somehow. Maybe on a grinder. (Watch your fingers!!) Sometimes the erasers are too thin for some pads but they work on others, depending on the size of the hole. If you buy new orange pads from Galazan's or a Kickeez pad, the plugs should come with them. Or you could get lucky like me. There is a stock guy who comes to my shooting club occasionally who replaces pads with trap shooting supressors and other gizmos. So I usually buy any old Kickeez pads or other pads that I can use. Usually, he sells the used ones for about $3-5.00 a piece. But then I have to make the plugs....... It takes a little practice to keep them straight in a vise, but you'll get the hang of it. Good luck.
