Dyeing fabric can be a tricky process, but the microwave can help. Mix your dye and warm water in a microwave-safe container, making sure you measure enough water to completely submerge the item you're dyeing. Soak your article of clothing in either vinegar or water—it depends on the type of dye you are using—then wring it out, and place it in the container. Cover the container with plastic wrap, and put it in the microwave for up to a minute. Keep a careful watch throughout this process—microwaves function at different powers, and you don’t want your plastic wrap to melt! When the process is finished, follow the directions that came with the dye to properly wash and dry your item.