If you caught the October 2010 issue of Canadian Family magazine you will have discovered that making an apron as the base for a witch costume let's your little one branch out from the standard black attire and customize it to suit her personality. Here's how you can create one at home:
Choose your material. We like felt best: It’s inexpensive, warm and easy to work with.
Cut the felt into the shape of the skirt. Measure her waist so that the top end fits around her ribs, and let the skirt veer out about one foot on either side to the bottom (just below the knees).
Measure to find out how wide and how high you should make the top half of the apron. Using your measurements, sketch an outline with marker and cut out.
Use a wide piece of ribbon as the sash that connects the top and bottom pieces of the apron. Cut to length and use a simple stitch to attach.
Using the same fabric cut two equal-sized strips of fabric to become the straps of the apron, and attach.
Whichever type of witch she chooses, you can find all sorts of great decorative bits (like yarn, stickers, cut outs, and more) at your local craft store. Attach then with a hot glue gun to keep everything secure.