I spent last week making 2 Pumpkin costumes; each for a grandniece and grandnephew. The pumpkin hat is basically from a design on Crochet Today a few copies back. The basic outfit was cobbled together from ideas found in about 4 publications, some quite old.
I gifted one already and you can see Maddie in her pumpkin hat. The outfit was made from Red Heart Super Saver in pumpkin and paddy green. It's pretty heavy but I thought a softer yarn wouldn't hold a pumpkin shape. Hope it's cool on Halloween!