Mix yeast with 1/2 cup water. Cream together margarine and sugar. Add yeast to water, eggs, salt, margarine and sugar. Add flour until goopy. Cover with towel 2 hours. Punch once in middle. Cover with plastic wrap. Refrigerate overnight. Shape into rolls. Let rise 30 minutes in greased muffin pans. Bake at 375 degrees for 15-20 minutes.