The Mote in God's Eye by Larry Niven is exactly what you want
Some other pics, this was after cleaning up a little with the chisel too. I was aiming for about 2-2.5 degrees. Would be nice to have something better right off the saw (or other method).
Got some more shaping to do on the top. Not sure how I'm going to finish it yet. Can you put renaissance wax over poly?