Wobble Fidget Spinner

This fidget spinner was intended to meet the "fidget" needs of students with ADHD and autism. By unevenly weighting the arms of the spinner, it provides additional sensory stimulation that, hopefully, will help the student focus on the instruction and be less of a distraction than a standard spinner.

The spinner uses a standard 608ZZ 8x22x7 skate bearing available here:
https://www.amazon.com/gp/product/B00NX1WBA0/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1

It also uses up to six 8mm chrome ball bearings available here:
https://www.amazon.com/gp/product/B008M3584K/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

It helps to sand the outer and inner surfaces of the skate bearing before super-gluing the skate bearing into the spinner and the two caps into the skate bearing. Note that the 3D Printing Nerd has an interesting proposal for how to mate the two caps without needing glue in this video:
https://www.youtube.com/watch?v=EgOuvOLiwAM

Students modeled the caps using Tinke