Dog spinner

If you are a dog lovers, like me, this spinner is for you! ;-)
Designed with bones profile in mind, It uses a single bearing, therefore is very inexpensive; nevertheless the weight is well distributed, and the time of spinning lasts long.

The bearing used are standard skateboard 608, 22mm in diameter, and nuts are 8MA, 13mm hexagon; no need for glue, normally.

**The caps used for the bearing in the simple spinner without covers are not my design; I have used this one:
https://www.thingiv