Yes, If u take some hot glue and 4 ball bearings from a skateboard and hot glue 3 of them onto the 4th bearing you can make a tri-spinner... here is a link, not my video but still works! I suggest that you take some electrical tape and wrap it around the circumference of the outter part of the outer bearings, as I have learned from the past that the outer three bearings do sometimes pop out!
hmmmm suspiciously similar to
DIY Hand-Spinner for kids and adults with ADHD:
I personally love this fidget toy to death, and it has helped me concentrate very much in my everyday life!
DIY Hand-Spinner for kids a...View Instructable »