Tutu skirts are made from layered tulle that flare out. They are commonly worn by ballerinas but are also popular as Halloween costumes. Tutus can become flat with time, especially if they have not been worn for a long time. Make tutus stick out to give them the right amount of flare and volume.
Clean the tutu by hand. Use cold water to rinse the tutu, being careful not to tear the tulle.
Check to see that all the tutu layers are separated and not folded over each other.
Spray the millinery starch over the tutu layers in an even fashion. Millinery spray is a fabric stiffener spray, and the amount of starch needed varies on the size of the tutu. Ensure no starch "puddles" are formed.
Hang the tutu upside down off a hanger for at least 15 minutes, allowing it to settle on the layers and stiffen them. There is no need to fluff the tutu as it dries; doing so may actually disrupt the drying process.