[Bones]

Here's a little more on how I made the pot.
Of course I didn't leave it as you saw it. The entire assembly is lightweight yet strong since the tube is very thick, being it came from a bat. Since I made it I've had the base MIG'ed to the tube to complete the construction and made a mounting plate that sits on top, not bonded to the tube as originally shown.

I've also reconfigured the base itself having trimmed it up a little so it has a better fit onto the board when mounted. Had some clearance issues but trimming it fixed those problems yet it still has enough mass to be effective.
The base itself is 3/4 inch thick solid aluminum so yes, it has plenty of mass to it.