More coldworking . With
More coldworking . With cerium oxide, you can get the surface to a pretty nice finish. It is, however, some work to do by hand.
You might want to pick up a copy of Coldworking WIthout Machines, by Paul Tarlow (the owner of this list). http://coldworkingglass.com/ Lots of good info.
Jester’s Baubles Fused Glass Designs