The one on the left is transferring a black and white image to polymer clay. Once it's baked, the image can be coloured with pencil crayons or Prismacolor ( or other) markers. Or it can be left as is, depending on your intention.
The sample on the right is a collage of mokume gane slices. I love the randomness of this technique and marvel at the immense variety of effects that can be achieved using a few simple tools and colours of clay.
When all the procedures are completed, we will put them together on a canvas to create a sampler. Hopefully, this sampler will serve as incentive to the class to further pursue the myriad techniques that can be produced using the versatile medium of polymer clay.