DIY Easy Witch Costume Featuring a Bewitching Tutu

My daughters decided to be witches for Halloween this year, and I had so much fun putting this costume together. The pièce de résistance was this super-easy, super-inexpensive tutu!
Instructions for DIY Witch Tutu Skirt 1. Cut your elastic according to size. To get the right size, measure your little one's waist and then subtract roughly 2 inches. This allows for some stretch and ensures the tutu won't fall down when she's wearing it.
2. Sew your elastic closed. The best method I have found to do this is to basically sew a rectangle over the part where the two ends overlap. That give you a really strong closure.
3. Cut your tulle to length. The easiest way to do this it to wrap your roll around a scrap of cardboard that is cut to your desired length. Wrap-wrap-wrap until you're done, and then it's easy to cut across so that all your pieces are the same length. Make sure you only cut one side!!! I made the mistake of cutting from both sides the first time, and I wasted a bunch of material :( Repeat this wrapping and cutting step for each of your colors. Then lay each pile of tulle so it is accessible.
FYI: {Sizes I Used: I wanted an 18" skirt for my 4 year old and a 22" skirt for my 5 year old. In total, I cut 54 36" strips for my 4 year old-pink/orange skirt; I cut a total of 62 44" strips for my 5 year old-purple/black skirt}
4. Place your elastic band on a steady, round object. I used vases for mine because it was the only thing I could find that was roughly the right circumference. This helps hold it in place for the next steps.
5. Determine your color pattern, and start adding the strips! Continue until you reach the desired fullness of your tutu.
The best part: it was so fast, and now I'm done! No last-minute costume drama.