Penny Spinner with Penny Insert Tool

This is a Remix using pennies as the weights.
4 pennies are press fit into each arm.

I also created a tool to help press the pennies into the arms.
The thin side is used to as a backer to space them into the hole and the longer one is used to press them in. I usually use a vise or a clamp.

Use your favorite bearing cap for the 608 center bearing.