| lava desk toy from the 80's
Can anyone tell me the name of the toy described below:
From the 80's, it is a clear plastic case filled with water, with a pool of "lava" at the bottom. When you turn it upside down, little colorful lava beads flow out, down "steps" inside the plastic case to the bottom. When all the lava beads have reached the bottom, you flip it over and do it again. I imagine it was for children, or used for a desk toy at the office. Please help! I need the name of what these were called. PS it is not a Lava Lamp that I am looking for, as this has no light it in and is much smaller. Thank you!
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