Grenades

From HellWiki

An Explosives device, these cause major damage to whatever is standing in the square you throw it in. Comes in flavors including, but not limited to: Pipe bombs, and Molotovs.

For fun times, toss one in Any Port, or in any other crowded room. Often accompanied by a "Free Stuff" announcement, this usually works in getting at least a few noobs. Repeat as needed.