I'm regularly doing macro work using a Nikon D800, typically with its internal flash, and when possibly using the SB700 speedlight.
In both cases, the flash is directly head-on, which has several disadvantages in macro work. I see more advanced macro photographers with various creative setups to work around this issue. Many of these setups are creatively home constructed. For example, they use a piece of metal as an arm and then somehow manage to screw their external flash on it, allowing for side-lit macro scenes.
I'm not that handy, therefore I was wondering if there are any formal/commercial offerings of such setups? I don't even know what to call it or search for it, so help is appreciated.
PS: I know there are macro ring flashes, but I don't want those — they are still heads-on.