Star Bubbling LAVA® Lamp 14.5" - ScientificsOnline.com
Been running two weeks now. What's the reason it makes bubbles in the wax? Do I need to fix it? I kinda like the bubbles, honestly. This is a “vintage” lava lamp,
Blobs in a Bottle - Make a Lava Lamp at Home - Science Bob
DIY Bubbly Lava Lamps - Juggling With Kids
Try Sally's 'Lava Lamp' Experiment in the Experimenting Spot