I had shown a variation of the water bomb and asked who created it. Dee and Anna mentioned its similarity to a model by Sam Cuilla; although, like Anna had said, my fold lacks a valley fold around its equator. Thank you both for your help. I tried to find out its name but it seems to me that it doesn't have just one.
Continuing, I also wanted to tell you guys that I searched a bit more and I found a fold that also looks a bit like the variation I showed you. Leyla Torres made it in order to explain how it could work like a spinner: http://www.origamispirit.com/2012/07/how-to-reuse-paper-to-have-fun/
