I have the same annoying problem with sensitive ear piercings.
ReactiveMetals has a few models of studs and ear-wire, shepherd and French hoops. Steel and Niobium ones can be found, but IMO, Ti should be the one and only earring material 'cause of its (lack of) weight!
I have never tried the anodized colors, so I cannot tell whether the colorful outer layers may have side-effects. Not likely to try them any time soon either, LOL!
Better known suppliers like Stuller and OttoFrei also carry some Ti findings...
The only annoying part about using Ti earring parts is that most interesting pearls come already set in something: taking them off posts is not one of my talents. You can definitely buy half drilled pearls though, and I'd bet that some companies would even accept your Ti findings to set pearls in them (if you are lucky!).
2c