Custom aero bar extensions - how?

Anyone made their own? What materials do I need, where do I get them? These would be for a pair of Oval A700’s. I just have never been happy with any extensions I have ever had, so I thought I would try rolling my own.

I have built my own extensions. No s-bend but I did bend up some with just a slight bend and used some old profile parts.

I got 6061-T6 tubing that matched the diameter of my Jammers and then had some molds made up that matched the diamter of the pipe. Took them over to the press and bent them up.

We now have a tube bender but not the right die to match the diameter of the tubing so no S-bend till I can somehow convince them that we need this diameter.