Here's what I've been working with. This mallet head was machined out of a solid piece of Delrin, a plastic denser than ABS or MDPE (the yellow stuff from NYC). A process that would be too expensive to sell to other polo-ers even in production.

Max: I've been playing with it for nearly a year now, so I couldn't say if the ABS mallet with caps is lighter than a hollow ABS pipe, but it sure as heck is lighter than this monster.

There is still a 3" wide shuffling surface at the center of the head. I'll report back to you if I notice the ball getting knocked around weird from hitting the edges of the caps.

I feel like my shot improved a lot in power and accuracy when I started using the closed-end mallet. I may have just happened to pick it up right when my skills were improving anyway, though. Joe the lefty from Chicago has the hardest, straightest slapshot in the sport, and he hates this thing. He uses hollow pipe just fine.

Ben: Do you want just a head or a complete mallet?

KG: I hadn't thought about the caps hooking each other because I hadn't played with anyone else with one. That's a good point though. I'll try rounding over the ends (I work in a woodshop and have access to lots of tools) before I assemble the next two heads. We'll see if they'll disconnect from each other more smoothly.

Where do you play?