Tenyo Anti Gravity Rock T-186 1998
You place a rock onto a frame which contains a design. When you concentrate… The rock slowly floats into the air. Even when the frame is moved about, the rock remains floating in the exact same spot. You can also make a clear figurine and a coin float.

Development story:
When Lubor Fiedler obtained the right materials, he discovered the theme and method for making a rock float. Many creators would normally stop right there. However, as those of you who own this item are already aware, this idea does not hold much conviction if the rock simply appears to be floating. In the same manner that a stage illusion was created to allow a metal ring to be passed around a floating lady, proving that she is really suspended in space, Lubor created a method to prove that there is nothing supporting the floating rock.