How To Make Smoke Rings With A Water Bottle, A Balloon, And Incense

In high school, I once tried to build a smoke-ring-generating vortex cannon out of a five-gallon paint bucket, a t-shirt, and some dry ice. My contraption was a letdown. It produced weak, wispy rings, and did so inconsistently. This video shows how to build a DIY vortex cannon that actually works. » 3/11/15 2:00pm 3/11/15 2:00pm