Here I will show you how to construct a Smoke Ring Cannon. It is quite easy to make and will take less than an hour to build. All the materials can easily be found at any supermarket and are quite affordable. Though the cannon won't be particularly life changing it will provide some momentary enjoyment.
Step 1: Materials:
Pringles can Tape Balloon Matches/Lighter Paper Bucket of water Funnel Scissors Can operner