One of my most vivid memories of hanging at my parents' restaurant, Wings, was a tall, electric blue lava lamp that sat at the end of the round bar. I remember watching the "lava" float up and down, up and down. And when I saw this fun experiment on Modern Parents, Messy Kids, it immediately took me back to that place. Coincidentally, I found an article from the Chicago Tribune describing Wings back in the 80s with its futuristic decor and menu. Read it here for a fun flashback.
Our ingredients: oil, water, food coloring and alka seltzer (don't ask why I had this on hand, because I'm not sure myself).