Wedding favor boxes can be made from a variety of materials, depending on the desired look, budget, and personal preferences. Some popular materials for wedding favor boxes include:

1. Cardboard: This is a cost-effective and versatile material that can be easily customized to match your wedding theme. Cardboard favor boxes can be painted, covered with fabric or paper, or decorated with ribbons, flowers, or other embellishments.
2. Paper: Paper favor boxes come in a wide range of colors, patterns, and textures. They can be made from cardstock, vellum, or specialty papers like tissue or crepe paper. Paper favor boxes can be easily folded and assembled, and they can be decorated with stickers, stamps, or other decorative elements.