I teach (I use that term loosely) a little ballet/tap class for Addi and her friends on Monday mornings. The Spring Concert is coming up so I made these tutu's for their costumes. It is practically a no sew project.
Then I cut 16, 1 foot wide strips of tulle, folded them in half once, then I folded them in half again over my finger to make a loop and held it on the "wrong side" of the elastic
Then you just take the loose ends, catch them through the loop and pull
Then just pull and straighten until you get it the way you want it.
Just repeat until you have the fullness you want.
note: the more strips you add the more the elastic will stretch.
They're really easy and the little girls LOVE them!