I made a rotating spool spacer to allow stacking and individual rotating of Hatchbox spools.
The Bearing Ring Mount allows for anything up to 17mm in diameter to go through it. The idea there was to allow a threaded rod to go through and hold a stack of spools together.
If that's not your thing, I also uploaded the original Y mount I had designed.

I used these bearings although any with an inside diameter of 8mm, outside of 22mm, and 7mm wide will work.

The diameter of the spacers that fits into the spool is 53.5mm so it may work for other brands.

You'll need to print two spacers and one of either bearing mount