I'm not sure what to think about the roller bar ends. Learning bw hikers I shredded grips, bar ends and levers. I'm alot better at keeping the bars off the ground now but I bet these would have saved me some parts.
In the pic, I've had these, what I called "roll-ends" since 1991. I haven't always been using them and I still suck at hitch hikers, but they've taken a beating. Those are the same 20 year-old bearings. At a hardware store, what I found were "expansion nuts" that would slip into the bars. A 3/8" bolt with washer and Suzue rear hub bearing was screwed in and it was perfect. Eventually, bar tubing got thicker and the nuts wouldn't fit so I afro-engineered another way to stick them in with two cone nuts from the same hub and a strip of rubber. A few years later, I removed the adjuster and lever from some old tech7-7s and screwed in a bolt with a lock washer and Suzue front hub bearing for rolling on the front side.
"Cheating" to some, but I saved some bars, grips and levers, and now I only use them to play around and let friends get their thrills rolling hikers, and I still suck at them.
(and I think these are better than BH's)