Custom armrest mounts. Ideas needed

I would like to mount my armrest directly to my basebar with as little gap between basebar and armrest as possible. I am currently using HED Flip-Lites but would like to not use the stock mount for the armrest. Any ideas?

So has anyone every mounted their armrests directly onto the basebar/drop bars and if so what did you use to do this. I have a couple of ideas but would like to get some different ideas.