What will a 20"x58" piece of fabric get you?  A new skirt for your little girl in about 30 minutes.  Okay.  It took me an hour but that is because I tried to get the lint out of my sewing machine and couldn't figure out how to put the darn thing back together.  All fixed now and ready to make a few more of these.  No pattern necessary.  Just sew the salvage edge with right sides together (this will be a back seam). Make a casing that will hold a 2" piece of elastic, leaving an opening to feed elastic.  Feed elastic through.  Sew opening closed.  And voila.  A new bright, happy polka-dot skirt.  Libby thought she wanted an unfinished edge on the bottom but changed her mind and now wants it to be hemmed.  So, a 1" hem it will get.