This is really easy and doesn't require much time.
The down side is that you can only use this short can for decoration purposes.
Actually, you can do whatever you want with it but I haven't found it very useful.
Step 1: What you'll need
- sharp knife or a scalpel
- a soda can
- luck (maybe)
Step 2: Cut your can
While you trace your can, press the knife or scalpel firmly onto it.
Later that line will be the guide where your can will tear (see the next step).
Step 3: Tear it in half
It should go fairly easy.
When you split the can make sure that your top half and bottom half are the same height.
That would ensure the best result.