The compass is the tool of choice when it comes to drawing circles, but what if you don't have one? There are many alternatives around the house and garage.
For small circles you can use a coin.
For larger circles, try tracing the outline of a can.
Finally, it's not too difficult to make your own compass. Take a strip of wood and bore a hole in one end. Nail down the other end, insert a pencil through the hole and draw the arc.
