Following is a transcript of the video. Narrator: Lava lamps might be the most cult item of lighting in the world. Since their invention in 1963, millions of the lamps have been sold across the globe.

90s homeware is back with a bang – and lava lamps are the biggest comeback kid of them all. Think of the hallmarks of your childhood bedroom and you might not exactly want to transplant them ...

Invented in 1963 by British engineer Edward Craven Walker, the lava lamp debuted as the “Astro Lamp” in the UK before becoming a sensation in the U.S. Known for its mesmerizing liquid motion ...

On the occasion of the anniversary, we have a look at Mathmos' lava lamp factory in Poole, UK, to see how the still-mesmerising design is made, and delve into its 60-year history. The lava lamp ...

This will be the main liquid in your lava lamp. Choose a food colouring and add a few drops to the jar, it should sink to the bottom underneath the oil. Adjust the amount based on your desired ...

Jessica Orwig: No. It really does look like human fat. Jones: That's me and my boss opening up a lava lamp. [glugging] Oh! Are we getting these noises, guys? Our goal was simple: to figure out ...