I don't really do single blocks, unless its an offer I can't refuse. LOTS of time and effort go into a single block, so its more economical to make batches. If I get enough requests, then I happily make them. I tend to make blocks that manufacturers don't simply because I can't compete with them.
Pic as promised:
8 completely cut copper bottoms!
This isn't the end of it. They have to be sandblasted, coated with the gun coating, tapped, O-ring installed, and then I have to make the Delrin tops.
Drilling more holes on the tool plate at the moment.