Hula Hoop Top

Often avaiable from this shop:

From Etsy: BUY NOW: Specialty Top Shop

Note: this site contains affiliate links for which I may be compensated

Hula Hoop Top: a stack of wooden rings are dropped on to the shaft of a spinning top resulting in surprisingly organized motion as the rings position themselves with a bit of lag as a function of height. This interesting behavior results from the transfer of rotation kinetic energy from the top to the rings, where the rings do not rotate about their symmetry axis. One of more than 100 unique spinning tops in my collection, received as gift from my friend and fellow collector Tim Rowett, and a product of KreiselArt (Ulrich Büker).