Since it is apple season, I wanted to do a project with apples. Sebastopol is apple country as well, so it really is a nice tie-in. For the younger kids I had them paint an apple on the back of a paper plate that was glued to a color paper.
The key to this project was getting the kids to really look at the apple and realize that it wasn't just "red" but that really it was yellow with red streaks and even some green spots.
Their favorite part was eating their model when done!