Hi EF,
In a matter of fact I am working on the feathers of a Great Planes Christen Eagle( 90-120 ). The feathers are monokote. What I do Is get tracing paper in any art craft store.Tape tracing paper on the feathers, then trace outline of feathers. Label what color it is from, and lower or top wing.then use a glue stick to stick the tracing paper to the monokote. Then cut the feather out. Alan