make a tutu!
http://tutusbowsandmore.com/pages/tutuinstructions.htm
I've made a ton of these. always a huge hit! very inexpensive to make but expensive to buy, so they have a great showy factor to them when opened. every little girl I've seen open hers has wanted to put it on immediately

the link above is just one of many out there. the key is to use "tulle on a spool" because some directions call for cutting tulle into strips (which is a HUGE pain).
if you don't sew at all, you can use an elastic headband for the waistband.
I've found the best color assortment for tulle on a spool at Hobby Lobby. JoAnns has just a few colors.
I recommend using the slipknot (rather than the regular knot shown on that tutorial). The ones Ive done with regular knots get too tight over time and the band shows through.
Also, you can "wrap" the waistband with tulle instead of ribbon if you want. I recommend wrapping with either one or the other or they don't look great over time (waistband starts showing through).
XOXO
B