From Grafoulis, songs and other various items related to Greek Independence Day.
From mathima.gr various resources of poems, songs and skits.
From Prasini Priza, some more activities, including coloring pages and more.
From Crayola, coloring page of a flag of Greece along with a map in English.
Portraits of heroes, paintings and images from mathima.gr.
Projects from matia.gr.
Some bulletin board ideas here.