1.5 Inch Steel Ball
Grab these steel balls and make some great Monkey Fists out of them. This is slightly bigger than the 1" ball bearing. However, these weigh 8 ounces, compared to 2 ounces for the 1" ball.
Get them in packs of 5, 10, 20, and 50.
This video was created to show you what can be done with these steel balls.