I stumbled across a new class of math generated 3D forms. This was a trial run to see if I could pull it off to turn one.
The form actually only has one surface and will roll down in an incline in a wonky fashion with the whole surface coming into contact upon each revolution.
The stand and the form are both chestnut. My receptionist's family took down a chestnut tree last summer and this is the first finished piece from that tree. I used the iron/vinegar technique for ebonizing the stand and am not real happy with it. It is hard to see due to the uneven black, but the stand is actually turned on 5 centers. I think I will use some shoe dye to give it more of an even color.
Form is Chestnut, with Krylon 5" x 5"
Stand is Chestnut, Vinegar/iron and tung oil
11" high on stand