Not uncommon for shops who do 5+ axis work for $200/hr around here. Pretty cool to watch the first few times.
After we got our programmers back from school, they showed a project they did at the school. (I won't name the software...it's pointless here) I thought it was cool, even though it was very simple. I just had not thought any machine had the capability to do it until I put the pieces together. They made themselves a nice hexagonal pen. I saw the video of it, or I may have not believed it at first. It involved live tooling with a 6 inserted face mill, and with the chuck spinning around 1k, the encoders for both the spindle and the like tooling were synched up so that as the insert swept by the pen, it produced a flat surfacing cut. I know they could have simply indexed the spindle and milled the flats, but they did all the cutting with both the spindle and the live head rotating, but timed perfectly. Besides, the live spindle was on an axis parallel to the spindle, so the only possible tool motion was purely circular. I never could get them to make me one on the machine we had on the floor, but it was capable. There's probably a video on youtube showing something similar. It could have been triangular, square or any other regular polygon I suppose.