One wore way to make a circle.
http://www.enchantedbeings.com/tutorials/paperpulpcombo1.jpg paper clay using either office shred or newspaper shred and water. Has to soak for couple of days.
How to Cut Curves in Wood | The Family Handyman
Concave Table Saw Jig
margie livingston - 3d paintings? sculpture made of paint? yes. layers and layers of acrylic paint!!!!
Cuts of Wood
Ellipses. A demonstration of drawing an ellipse (mesmerizing and brilliant) as well as the math behind it all.
Drawing an ellipse with pins & a string