Next you need to sew the panels together. Start with two panels, right sides together and sew. I used 1/4 seam allowance. These pumpkins are very forgiving so you don't have to be too exact. Then sew another panel to the right side on one of the panels you have already sewed. You should have three panels sewed together now. You don't have to iron or press. But I did clip the seems to help with the curve. Now repeat with the three remaining panels. Now take the two sets of panels and place them right sides together. Pin all around leaving the top open. Sew from one end to the other. DON'T forget to leave an opening at the top. Turn the pumpkin right side out. You are now ready to stuff.
I used Cinnamon sticks for stems. You could use sticks, pencils, whatever you want. The more creative the more interesting. I had these fall leaves left over from an old project and some string.
Put your stem into the opening and pull your needle very tight. The hole should now be closed around your stem. Now tie off your thread. Add your leaves. I sewed them on with a few stitches. Fluff our your pumpkin. Now repeat the whole process again until you have tons of stuffed pumpkins.