I get really excited about Halloween and really wish that more people would post their projects BEFORE instead of AFTER Halloween, so everyone has a chance to share some new ideas to actually use, instead of forgetting about it in the coming year.
Anyways, I ended up stuffing mine with clothes scraps because I don't have my polyfill here with me. Because of that, the filling was WAY to thick to stick the needling ALL the way through, so I wrapped the thread around really tightly, sewed it to the bottom, then wrapped it back up really tightly, etc. to make the detail.
Here is the link to the tutorial I used: http://thompsonfamily.typepad.com/thompson_familylife/2009/11/fabric-pumpkin-tutorial.html
My Pumpkin was made of out a 6X12 inch piece of fabric. It's small and adorable.