The first 450 people who show up at Cleveland's convention center Saturday and surrender a working handgun will receive a card.
Police, who will be at the center to ensure the guns are turned in safely, asked for the weapons to be brought in unloaded and in a clear plastic bag.
The city has recorded 119 homicides so far this year - the same number for all of 2006.
Gasoline prices have surged in recent weeks, with the statewide average for a gallon of regular gas at $3.07 last weekend, 25 cents more than Oct. 22.
