I was given the idea for this craft from this website. I take no credit for it. My friend Amberly helped me with the directions as well.
1) 1 roll of each color of 6” tulle (25 yard rolls); I suggest 2 colors
2) 1 pack of white elastic (3/4” long); how much elasic you use depends on the size of the child you’re making a tutu for: double the size of their waist.
Cut the tulle into strips about 26” long.
Cut the elastic and sew into a loop.
Alternate tying on strips of each color. Click the above link for a great visual on how to tie them. Do not tighten them much until you’ve completed the tutu so that you can shift and even out strips as needed.