Original stormtrooper had gone to Matthew's friend (who broke his leg in two places while trampolining at Matthew's birthday party at a trampoline park). Made a replacement, 100% acrylic yarn, 3.25mm hook. Worked into back loops only for the immediate white round after black rounds. The helmet detail was a little tricky. I should have made a thinner black band above the eyes instead of following the pattern blindly. I always make the elbows higher than indicated in the pattern.