This is probably one of the more classical art project. I used to do them back when I am in primary school. We found this very suitable cookie box and we did a simple small aquarium. Harith trace the fish, octopus and jelly fish with felt , cut then and i hang them with strings. Later we colour all the box body with greenish bluish fusion color same as weed color Harith says. Of course uyay help a little and kacau a lot.