How To Make Your Own Emergency Spare Key

While I don’t know how often one would find use for this technique, it is still one of those mildly interesting things that are fun to learn. In this tutorial, you’ll be shown how to create an print of a key, and transfer the imprint onto the lid of a food can. You then cut out your own DIY spare key and use it to unlock your padlock. You might want to use pliers and safety gloves to do this project, and please be careful not to hurt yourself!

(via DaveHax)