These little babies couldn't be easier to make. I used a rib knit sweater and simply cut different size tubes. (sleeves are a good source to start with)

Then did a gather stitch at each end. Before pulling the gather stitch closed at the second end I stuffed it with batting.

I sewed a few stitches from top to bottom causing the pumpkin to be a bit more pumpkin shaped.

I cut small squares of different green wool felted sweaters and rolled them into tubes for the stems.