clamps

So ive been searching the internet for what seems like forever and i have yet to find risers that would fit 7/8 bars. I've found a lot of 7/8 bars with the specs i want. is there any company that makes clamps?

Need y'alls input if you please. I've been working on some handlebar designs recently. I'm interested in offering these for sale on a made to order basis. There are still a number of factors to work out and finishing pieces that need to be done. The pics posted below are prototype models, not...