a week or so ago. I decided i wasn't paying $45+ for a roller handle. Looked in the scrap metal racks behind the shop and said, why not.
Bent the stock bar
turned a roller handle
extended the threads on the rod, for height adjustment. Then set the roller mount ( a 5/8-11 nut) welded on to a rod, turned down to fit roller handle i.d.
quick bomb can paint job on the roller mount assy.
drilled and tapped a 8-32 for set screw to secure handle.
slid on a motorcycle throttle grip sleeve. You can also get a sleeve from uniqutek
2 hours later it's up and running.