Zippo Manufacturing Co. has extinguished Zippotricks.com. Citing concerns of fire safety officials, Zippo yesterday shut down the company-sponsored Web site that featured 555 flaming tricks that could be done with Zippo lighters. The company also said it was canceling all trick demonstrations, including those performed on its current 10-city Hot Tour. Instead of whirling, twisting, flipping and igniting lighters, the two professional showmen on the tour -- "Booty" and "Mr. Twistyneck" -- will promote local "hot" bands selected by the company.