Materials:
A smoke comp, your choice, I use kno3/sugar 65/35.
Step 1: Wet, melt mix the chemicals.
Step 2: Mold the smoke bomb into a ball. Let it dry.
Step 3: Mix up a solution of Elmer's white glue and sawdust. Make it thick.
Step 4: Then wrap it around the smoke comp, let it dry.
Step 5: Poke a hole in the casing and add a few match heads and fuse.
Step 6: Light.
Effects: All smoke will come out of that tiny fuse hole.
Optional: Use Durham's water putty, a good thing to that is that it dries a hell of a lot faster. To make them even cooler add a colored smoke comp and paint the ball the color of the smoke.
P.S. I came across this idea when I was drinking a lot of coke and eating peanut butter. Bare with me here.