I came across this amazing tutorial on how to make Pumpkins using foam by crystal rose!
You will need 1 4×8 sheets of Styrofoam insulation- 2″ piece
3M Super 77 spray adhesive
Joint Compound or clear silicone caulking
sandpaper or a sanding sponge
utility knife
paint
here are the step by step directions
Isn’t this project incredible?! You can make them any size you want, just cut circles out of the foam, use the spray adhesive to stickthem together, sand them into the shape you want, cover them with the joint compound so the paint will stick, and then paint them.