I've met quite a few graphic designers in my career. Though I haven't met any who were specifically doing 3d-style icons, they're all artists. Icons are just

I've met quite a few graphic designers in my career. Though I haven't met any who were specifically doing 3d-style icons, they're all artists. Icons are just small art, and 3d-style icons were just a fad that fell out of fashion. I'd bet that nobody's career was staked on that niche.