bar ends?

HELP, I'm looking for some bar ends that clamp to the inside of the bars so that you don't loose any hand width on the bars. Reg bar ends make your hand possition on the bars 1-2 " narrower and I dont want to replace the bars on my single speed.
Does this exist as a product?
Thinking of something that expands like an old school threaded stem on the inside of the bars....

These are exactly what you need:
ebay bar ends
They're in the UK, but they were the coolest things around back in the day.
another one, but not as cool, but might not fit

just, its uhh, just dont do it.

haha, dont you know only nerds have bar ends. the cool kids have riser bars.

this is for my single speed (nerdy to start with) have risers, just need some more leverage for the climbs with no gears