This costume included a big first for me: Working with leather. After scouring local thrift stores, we found two leather coats that could be carved into pieces and remade into Bucky's Winter Soldier coat. I derived the pattern for the jacket from my Doctor Horrible coat pattern, and I made the silver glove from scratch.
My husband created the bionic arm with Worbla, a thermoplastic. The arm features a fully functional elbow joint, so the only thing he can't do is raise his arm above his head.
Photos courtesy SPC Portrait Art, Matt Schott, and the Iron Brothers of Topeka (IBOT). Final image is for reference and is not our costume!