What about looming a group of pumpkins for your Fall home decor. They are so easy. Just use the loom for the appropriate size.Loom one or loom a group of pumpkins. Check out the provocraft site for an easy pattern.
Joann has all the supplies, the yarn you need,Red Heart is a nice acrylic worsted to use.
Of course if you don't have your looms a great set to get is the round Knifty Knitter set.