what is "vibenators"?

I cannot insert cork in the handle bar as the inside has (welded in plpace I think) the nut for mounting the bar ends.

would you know of a different bar end that could help?

I have seen (chinese??) adjustable levers @ �26 but honestly I am not comfortable with taking a change as I hate things that don't fit as they are supposed to.
interestingly OTR do adjustable levers but at around � 120 each.

maybe I soldier on a bit in case the puppies compress a little