Dynamite wrapped in cigar leaves, with a slow fuse at one end and a fast fuse in the other. The dynamite is hollow and there is suffcient tobacco to draw a lungful of smoke.
When the cigar is lit, the fuse starts to burn, exploding the dynamite in three or fifteen seconds, depending on which end is lit. This can be used as an unobtrusive way to store a DynamiteStick or as a part of a trap or trick.
One item schtick byes you a boxful of cigar grenades.