"Light up a love of science — with your very own bubble lamp. Mix vegetable oil and liquid watercolor, and pour it inside the body of your bubble lamp. Wire up a set of lights, then engineer a bubble pump to keep the bubbles inside your lamp movin' and groovin'. Learn about the unique interaction between oil and water, and why that makes lava lamps so lavable."
Video Tutorial: https://www.youtube.com/watch?v=-drsVD9JvA8