Watching the rising and falling colored blobs in these lamps is hypnotizing. They measure 13.75 inches tall and come in three assorted colors: pink, green and blue.
— Mary Porter, owner of Curiosity Zone in Ashburn Va., told TDmonthly in an October 2011 survey that she sells several of these lamps each month, making them her best selling tween item.
— Marc Slotin, owner of My Imagination Station in Spartanburg, S.C., told TDmonthly in a Fall 2013 survey that lava lamps were a big seller with tweens.