Image 1 of 10 of a (3,5) torus knot made of Styrofoam, coated with a urethane chemical including bronze powder, a process call ``cold casting". I finally completed this project on April 12, 2020. It is about 11" in diameter. These pictures show the progress of the coating process, first with layers having no bronze powder, then with bronze powder, finally shaped and polished with black shoe polish. Some light spots show where the bronze finish was too thin, so perhaps it needs more layers.
Rights belong to Alex Feingold