Here's a real flouncy addition using wild scraps from my daughter's 2 year-old (now 11) Jungle Party. This pair is a hit at her school. She wears it practically every other day.
The fabric scraps from the pillow covers (see behind pants) and to cover another sofa did just fine for this pair of jeans.
My eldest daughter embroidered this when she was 10 years old, but she outgrew the jeans. Solution: cut it off and sew it in as an extension to another pair. Works great!
I'll post more later.
For now, have fun extending your creativity...