Pinterest #2, Scrap tutu

I saw this on Pinterest:

So stinking cute! Why didn't I ever think to use fabric to make a tutu and not just tulle? So I gave it a shot. Here are my attempts:

I don't know what I did wrong. These are my first tutu's that I have done and I must have put too much fabric on the elastic because I stretched it to its maximum. Now there is no give at all and is way too big for Shannon even though I measured her waist and subtracted a couple of inches.