Here's a short how-to for making what I call, for lack of a better name, toga beads. They remind me of marble "fabric" drapped on classical statues.
All you'll need is white polymer clay, a cutter, needle, black acrylic paint, paper towel and possibly some steel wool.
1. Make a ball of white clay about double the size that you want the finished bead to be.
2. Pinch and twist opposing sides of the ball making "handles" (sort of) and continue to twist until the bead has layers/twists to suit you. Less twisting will result in thick folds, more twisting results in thinner folds.
3. Carefully cut the handles off the ends of the bead.
4. Pierce, flat end to flat end, with a needle and bake standing up on one end or using a bead rack.
5. Brush with black acrylic paint, getting the paint into all the indentations, then immediately removing paint from the "high spots" with a paper towel. After the paint dries if you find you want more white showing, remove even more of the black paint with steel wool.
Black and white gives these beads a marble/toga feel but different colors of clay and paint would be fun too!