What is the best lava lamp? It seems that no matter how much culture changes, there’s always a demand for the retro, which is why the playful visuals of a lava lamp never seem to go out of style.

COLUMBUS, Ohio (WCMH) — Monica Day visited COSI, where she learned how families can make their own lava lamps at home. The project used simple household items, including oil, water, food coloring and ...