+1. That said, there are plans available to machine your own. It's not particularly difficult.
An official one would help make the health issues associated with friable ("easily crumbled") materials (e.g. wood, Garolite, FR4, carbon composite, fiberglass) easily controlled.
I like the idea of a kit.
@FlatBaller has posted pictures and STLs for a dust head.
@patofoto and I will be posting plans, parts (and where to order them) and a machining and installation guide for a dust head soon.