Butterfly Puddler. Make your own butterfly puddler by filling a small bowl, dish or flower pot bottom with sand. Add water until the sand is soggy. Make sure the bowl is at least 16″ wide or you will be adding water to it often as it evaporates. The larger size will also allow for more butterflies. Add a tbsp of composted manure or mushroom compost to the sand Add river stones as well as some flat surfaces such as clam shells for the butterflies to sun bathe on.