Here is what you do:
This little turtle is a long-time favorite of mine.
To make him paint the bottom and sides of a tuna can green.
If you are using poster paint add a squirt of liquid soap to help it stick to the metal can.
Draw around the can on green paper.
Add legs on each side and a head and a tail.
Cut the outline out.
Glue the can to the turtle outline. Glue two small buttons to the head for eyes.
Decorate the shell by gluing on lots of different buttons.
You might want to try decorating the shell of your turtle a different way.