I made a pop can pop!
Step 1: Step One
Live in up north (Rochester, NY for example).
Step 2: Now, Prepare the Can for Explosion
Leave it outside in the middle of winter (good idea, right?)
Step 3: Retrieval of Can
Now go outside and get the can...with any luck it'll look like mine did. Hoorah--water expands when it freezes!
--FYI, I didn't do anything to the can but move it to take pictures; this is how bent it was when i picked it up