beads

                         

This one has a three dimensional effect, I think.  It looks like rings of beads.  Here's another version:

I called the second one "Esther's nightmare" because it reminded me of Esther's fever nightmare in Bleak House.  While she was ill with smallpox she had a dream in which she was a bead in a giant necklace somewhere in the heavens and prayed for release from "the dreadful thing", but without success.  It sounded both beautiful and terrible.  I don't think these red and black beads are very terrible, but for some reasons that's what I think of when I look at them.