Tumbling Top - Spinning Top

This elegant metal top has two completely different shapes, each one with a different motion. <br /> <br />One shape behaves like a normal spinning top. But twist the two halves of the top by 90 degrees, and you now have an 'Oloid' shape. On a gentle slope, or if you give the Oloid a slight push, it will 'wobble'across the surface. <br /> <br />The top is made of aluminium, and is about 33 mm high. As in the picture, one half is silver coloured, and the other half is blue.