Fidget spinners are going to stay a little longer than we consider them to be. For example, check out this Rube Goldberg machine which ends with a fitting demise for the spinning nuisances.
This YouTuber, Kaplamino, bought 50 fidget spinners to create this complex Rube Goldberg machine which shows the interesting use of the toy. The whole structure is built on an angled table to make the whole thing work. Have a look at the video and its satisfying end when all the spinner slides off and go into the trash.