We used paper clips as a base for the Sugru, to keep the shape consistent while working it. It also makes the end product a little stiffer. Unfold them to make them straight, then mold them to the shape you want your wrap around ear pieces to be.
Step 3: Step 2 - Mold
Cut open your Sugru packet, divide the Sugru into 2 equal parts. Cover your paper-clip forms roughly with Sugru. Attach the wrap around portions while wearing your headphones to ensure they fit.