My current project requires some feathers. I'm using a marble to help with the form. I coat the marble thinly with Vaseline then attach a blob of Kneadatite. The edges of the "blob" are smoothed out and the sculpting begins. I start with typical feather shapes using the toothpick and finally refining with an X-Acto knife.
Davrax, The annihilator
5 minutes ago