Li'l Lisa Slurry is a product created by Charles Montgomery Burns. It can be used as animal food, insulation for low-income houses, engine coolant, and an explosive. It is created from dead aquatic animals, and was inspired by Lisa's passion for recycling. Burns misunderstood the concept of recycling and saw the death and reuse of animals as related to it. Lisa, disgusted, renounced her affiliation with the product and the ten million dollar check which would come to her for it, much to her father's disappointment.