Moussa is a metal-smith, designing gorgeous jewelry using sterling silver, Tuareg silver, and semi-precious stones. His techniques include engraving intricate geometric designs, using decorative inlay, and a lost wax process. Many of his pieces show the repoussé style by which he hammers a shape on the reverse side, creating a raised design on the front. This style is a slow process, taking hundreds of hours, but it maximizes the touch, feel, and visual beauty of the piece. Moussa was taught by his father and uncles and in turn he has taught his sons and nephews.