My 21 month old made a haphazard picture:
My four year old's is a bit more straight, and he even wanted to spell some real words.
I made this one :)
I got the idea to make these pumpkins here. My four year old painted some paper plates orange and he drew on the faces. Once they were dry, I glued on a stem and cut out the faces.
For preschool last week, my son's class went on a nature walk and collected leaves and pine needles. I guess they used some for a project there, which he hasn't brought home yet, but the extras he brought home in a bag. Instead of just leaving them in the bag (or throwing them out) I thought we could enjoy them during this fall season. I just taped them up under the top of our entertainment center, so they hang in a row above our TV: