If you love having butterflies in your backyard garden, give this easy DIY project a try. According to the Humane Society of the United States, butterflies love mud puddles because they help the insects do double-duty: They can gather both water and nutrients from the mud. To make a butterfly puddle haven in your backyard, grab an old pie tin and mix water with dirt and a little sand. Add enough water so the soil mixture is well-saturated, but there are water puddles on top; when in doubt, add more water. Then find a sunny spot near flowers and leave it for the butterflies to find and go "puddling."