Jockeys was nice enough to hook me up with his "space-inspired" ringed handle. I used JB Weld to glue the 28mm knot and WOW. Super Chubby! (reference to the Chubby offered by Simpsons brushes). Totally awesome brush - dense, soft, huge and no shedding - all at a huge discount. I'll post some pics soon.

Spazola recommended JB Weld to secure knots and it does indeed work great. I have had my Proraso Omega Boar brush in JB Weld for six months of heavy use and it is SOLID. The diameter of the hole was too big, too, but it still works great. I would have a hard time using anything else.