From the sites of her, I am guessing she's one good witch! Her name is Glitterella and she's designed by Sherri Baldy of Scrapbook Stamp Society. There's other cute digi-stamps using Glitterella too! You can check them out at the SSS Store. This stamp here is called Glitterella Picked a Pumpkin.
Project Materials: Cardstock (AC Metallic, Bazzill, Neenah); Digi Stamp (Addicted to Stamps-Scrapbook Stamp Society); Ink (Colorbox Chalk); Ribbon (Michaels); Buttons (Grandma's Button bag); Die Cuts (Spellbinders Nestabilities); Adhesives (Pop dots, Glue All, Glue Dots, Ribbon Glue); Color (Copic Markers);