This isn’t so much an art project as it is an artistic method. Let your class dip marshmallows in tempera paint and make a picture! You can use mini, regular-size, and/or extra large marshmallows.
Kids can either spell out a word or message, like above, or paint a scene from a story (rainbow for Noah’s ark, the city of Jericho, etc.). Younger kids will be content to make an abstract drawing, like my youngest daughter, whose picture you can see starting to come together below.
A cross is another easy project to make using this method.
I originally found the idea at Elementary Art Fun. Thanks for sharing this fun painting method!