this one

looks ok for £20

I was hoping someone would reply to this, I would like to know as well.

I was just about to try those but went with Revolution ones instead as they're cheaper. Look decent enough though.

Are these the ones?

Grips

Are the lock on bolts a good size? Some of these types of grips have quite small bolts.

looks ok

for putting on the top of a walking stick maybe? 😕

don't like the look of that big bulge in the middle of the palm.

don't like much tho'

I tried the revolution ones – there OK, but I found that the bar-end was too flat when the grips were comfy. OR what I mean is when the hand grip is flatish to support the hand, the barend section could do to point up a bit more.
Now I use Ergon as the bar end is adjustable.

Yeah, they seem to fit me quite nicely but I can see exactly what you mean, being able to rotate the barends could be a big advantage.

just received some and initial impressions are that they are pretty heavy (around 185 grammes each side !!)