Ritchey bar ends
You can try a pair of bar ends from Richey: they come in a variety of lengths and shapes.
It's been 3 years already since I put them on my bike (the WCS 105mm model) - not the latest version, but the previous one: advertised at 95g (IIRC), the actual weight is 101g. They have been great so far, I hit them too many times to remember - from so many uses, the logo and the anodized layer have washed out - making them look a bit white-ish, they show a couple of [cosmetic] scratches, and the plastic caps are pretty scratched too. Other than that, I could not break them no matter how much I have tried
The downsides are:
- they are narrow - since I have normal to big hands, on long climbs they [the hands] tend to become numb; I plan to fix that by wrapping some handlebar tape around the bard ends (1 or 2 layers), just to make them thicker
- the bolts rusted a bit
One more good thing about them is that they are not slippery in wet.
You can also have a look at the Tune RH1 bar ends. They are lightweight and look beefy (that's what I found out online, didn't see any in reality).
The downside is that they are way more expensive than Ritchey or Smica bar ends, and you can't find them in North America.