I'm happy to see we have a carving forum. Please post pics of your work.
Recently I did a series of 10 tiger maple drawer-front pinwheels and fans for a client's highboy. He asked that I "exaggerate" them design-wise and depth-wise to show the most shadowing possible. All are 3/4" at the center where the knob will be located. The pinwheels are 2+1/2" to 3+1/4". The fans are 7+1/2". They are sanded to 220. The client will apply the finish. These pics are as they looked when they left my shop.