Step 1: Preparation
What do you need?
Empty metal can
Can opener (optional, if your can has not easy open design)
What skills do you need?
Good appetite (to eat the food from the can)
No special skills required
How long will it take?
About 5 min to make a cutter and about the same time to eat the contents of your food can
Remove a label from your can, wash the can thoroughly and dry it with a cloth or use your wife’s hair dryer if she doesn’t mind.
Hint. For a better result use a metal can with smooth walls (without ribs on the side). I used the one I found in my kitchen.
Now you are ready to cut it.
Cut your can along the lines starting from the open end of the can.
Now use a marker and draw shark teeth on the piece you just cut from the can.
Use your metal cutter and cut teeth on one of the sides of this piece. Make as many teeth and as small as possible. In my example I cut big teeth for an illustration purpose.
Now you are ready to make your scotch tape cutter.