Well be making a short can from a regular one.
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

All you will need for this instructable is:
- sharp knife or a scalpel
- a soda can
- skill
- luck (maybe)

Step 2: Cut Your Can

You use your knife or a scalpel (what ever you have, preferably sharp) to trace a line around the 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

Make a starting hole on the line you made and start pressing there.
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.