Inspired by Onewa Hordika's Hammers. This part can be used on the ends of staves, or, alternatively, can attach to other weapon heads, turning them into a spinning glaive. Made as part of the Modular Weapons Initiative. Crafted by Petrus, using a base file provided by KingSidorak. His work can be found here:
https://www.shapeways.com/shops/kingsidorak