(click on pictures for larger images)
I start with a pile of scrap, thick pieces rolled fairly flat, canes sliced open and rolled flat. Grab individual pieces and stack them on top of each other randomly.
The beauty of polymer clay is that it retains the original colours even though stacked and rolled several times, just as it does when you make a cane that you repeatedly reduce.
This bead has some interesting edges showing, but there is a fairly large, bland part, and that won't translate into a spiral pattern, so you can cut int the bead in the boring area and the undulations will reveal more edges interestingly patterned.
The result is a related batch of interesting beads, even though the overall blends are grey. The interest comes primarily from the colours and contrast found at the edges. These are raw, so I'll bake them tomorrow and sand and buff and show the final beads. You can imagine how interesting your beads would be if you were selective in using scrap that included metal leaf, glitter, metallic clays, etc.