Turn ordinary tin cans into charming windmills for your garden. Start by collecting empty tin cans of various sizes. Remove the labels and clean the cans thoroughly. Paint the cans in your desired colors, using weather-resistant paint. Next, cut out triangular shapes from the sides of the cans to create the blades of the windmill. Attach the blades to a central axis using a sturdy metal rod or wooden dowel. For added visual interest, consider adding decorative elements such as beads or small trinkets to the blades. Finally, mount the windmill on a post or pole in your garden, and enjoy the whimsical sight of the spinning tin can windmills, adding a touch of playfulness to your outdoor space.