Weighted Bar end sliders

Just wondering if anyone knows anything about bar ends that are weighted to reduce vibration in the clip ons... Where can I find em and who makes them? Saw a message a long time ago. Now considering them...

well the stock bar ends are weighted, you aren't really going to find many bar ends that are heavier than the stock ones. usually they are lighter.

I got a lot more vibraiton when i switched from stockers to carbon fiber. there is more vibration, but it looks so much better i dont care.

Found the site for the weighted bar ends... They look rather huge though. yow. Jury is still out on this one.... http://www.hvmparts.com./ Not sure if I like how the monsters look....

but it doesn't say anything about how much heavier they are than the stock ones, and the stock ones are pretty damn heavy.