I've been seeing some pretty awesome sculptures made of rebar. They seem to
be very anatomically correct. Are these done by talent and eye, or by
taking measurements, and using big calipers to get things right?

I'm going to start doing some, and know I can get things to look like the
original, but the difference between those and sculptures that are
anatomically correct are plainly of different magnitudes.

Is a lot of the rebar cold bent and just trial fitted, or is a form used? I
saw some saguaros and a moose the other day that were just awesome, and
using cheap rebar would not be terribly expensive unless you figure in your
time.

Help appreciated.

Steve