I stuffed a rag in the mitten and began to tack down the design using the felting needle and a bamboo skewer (to keep from needling my finger).
Once I finished the design I took out the rag and stuffed the brush in the mitten for serious needling. The long bristles of the brush allowed me to push the needle further into the wool.
I think I am done with the left mitten. I will do the right mitten later.
I bought the yarn for the cuff:
It feels soft and yummy.