Does anyone remember a company making a dimply diabolo in the late 1990s? It was marketed with the idea that the dimply surface enabled higher throws due to the Magnus effect. Which was a complete misunderstanding of what the Magnus does. Was just reminded of it by this interesting video which gives a good demonstration of what the effect:
https://youtube.com/v/2OSrvzNW9FE
by Orinoco, 2015-07-16 20:40:09