How can I make a model of an ox wagon?

Excerpted from WikiHow (Full article at related link): "Make sure you have the following materials (listed further down). # Cut the milk carton in half as shown by the dotted, red lines below. Keep the half with the top point, and paint it brown. Set it aside to dry. # Paint the 4 bottle or milk caps black or brown to make the wheels for the wagon. You can also cut small circles from black or brown construction paper and glue them to the outside of the caps. # Cut a piece of white construction paper about 8 inches x 5 inches. Glue or tape it over the hole you cut in the milk carton to make the cover for your wagon. # Here is the tricky part... Glue the wheels into place! If you are using the bottle or milk caps they will be heavy and you will have to work to find a good position to lay your wagon until the wheels dry. You will want most of each wheel attached to the wagon body with very little hanging over the bottom edge. Enjoy your pioneer wagon. "