I am using the plastic hex bases that AGOAC minis come with.
I was thinking to use GW Astrogranite to achieve a lunar texture with some added small details like what I asked here about, to spice them up a bit.
However, if I use a thick coating of Astrogranite it gets a texture like farina meal, and it doesn't suit my tastes (which is ironic, as I absolutely love devouring farina). If I use a thinner coating of AG, I don't have enough material to sculpt small crater-like holes. I am actually thinking of ditching the whole idea.