spin spining toy (M8 Nut)

thingiverse

It's simply a toy that spins, likely requiring a bit of glue to keep the tip in place. The good news is that it fits snugly, making it easy to secure with some adhesive. I used Cura to get the design just right, but maybe the dimensions weren't quite what they needed to be. To fix this, simply adjust the height to 35mm and the M8 nuts should fit perfectly into place.