Using size 2.75mm needles and worsted weight yarn cast on 16 stitches and join for knitting in the round.
knit a k3, p1 ribbed tube for 13 rows.
Don’t bind off but thread the yarn through the 16 stitches to cinch the top. Pull the thread through to the bottom and stuff the pumpkin.
Pulling the yarn through to the other end creates the tuck.
Using a tapestry needle, thread the cast-on tail around the stitches of your cast-on end to cinch the top closed.
Make a short i-cord stem and attach to the top.
That’s all! Make a bunch!