Lay out small pumpkins to determine how many you’ll need to fill a 14-inch wire wreath form from a crafts store. Make holes through the pumpkins using bamboo or metal skewers or a power drill with a long drill bit. Thread a 14-inch piece of green florist’s wire through each hole and twist it around the wreath frame to adhere each pumpkin. When all the pumpkins are in place, use more wire to attach sprigs of bittersweet. Use a hot-glue gun to attach orange- and black-wrapped candies.