WATER BLOB FUN! Fold the plastic sheeting in half and tape the three open sides with duct tape (it helps to have assistance) but leave open a small hole for the water hose. I also added some bright blue food coloring just for that wow factor. Next time we’re going to add glitter but you could also add confetti or small gummy items like worms or fish for a theme party. Just make sure the items are very soft with no pointy edges. This provides a great study on waves and motion.