Find a tin can the right diameter for the watering can you want to make. Big soup cans make big watering cans, and small ones make small dainty watering cans. Remove the label and top from the can and clean it thoroughly. Let dry. Score along a V at any point on the can, so that the V is facing up from a point at the middle of the side of the can and the ends are at the open top.With gloved fingers, pull out the V from the can so it points out, like a small spout. Add a handle with another small can with both sides cut out or with a strip from a can. Make sure the edges are smooth, or cover them. You can paint and decorate your can any way you like. Now go out and grow a beautiful garden!