A swinging weight assembly for an impact tool includes an anvil having an impact jaw that is reinforced with a circumferential flange. The methods generally comprise applying a layer of magnetizable pigment coating in liquid form on a substrate, with the magnetizable pigment coating containing a plurality of magnetic non-spherical particles or flakes. In this connection, the cooling apparatus is constructed as a heat engine or as an absorption refrigerator in order to carry out a thermodynamic cycle. The payment method and system may be used to purchase goods, such as gasoline, and to simultaneously electronically enter contests, sweepstakes, games, andor lotteries.