On a lightly floured surface, roll out the dough a scant 1/4 inch thick. Using a 2 1/4-inch round cookie cutter, stamp out as many rounds as possible. Reroll the scraps and stamp out more rounds. You should have about 40 rounds. Set a peanut butter cup or halved mounds bar in the center of each round and roll the dough around the candy, pinching any tears. Roll the cookies into balls and arrange on the prepared baking sheets, 1 inch apart.