CNC polishing with a mill?

Hi all,

I was wondering if anyone had any suggestions on ways to polish with a
CNC mill?
I'm not talking about random-polishing of existing items, but rather,
polishing as a finish step on a piece that has just been milled and is
still sitting in the mill....

It seems that you could use the existing toolpath (or create one with
your CAM package) that would match the geometry and make some nice
polishing passes over your piece... I'm particularly interested in
this, because it'd give a good even finish and could potentially be used
to remove machining marks.. very good as I'd love to be able to
reliably finish Alu parts on the mill and be able to chuck them straight
into anodizing...

What would you use tho? Do they make milling polishing tools even?
~Abby