I've been having fun this evening firing perfect smoke rings at the characters in Star Trek and NCIS on TV.
Make a smoke ring cannon:
Take one empty supermarket 2 or 4 pint plastic milk bottle, the type with a big, round screw cap. Drink milk.Wash /dry bottle. Take several massive hits on your vape and carefully puff into bottle. Now gently squeezing and squishing the bottle you can fire off perfect smoke rings. I can fire off about 100 on one bottle of vapor!
Make a smoke ring cannon:
Take one empty supermarket 2 or 4 pint plastic milk bottle, the type with a big, round screw cap. Drink milk.Wash /dry bottle. Take several massive hits on your vape and carefully puff into bottle. Now gently squeezing and squishing the bottle you can fire off perfect smoke rings. I can fire off about 100 on one bottle of vapor!