In the Kalevala, the Finnish national epic, there is a myth of the world being created from the fragments of an egg laid by a diving duck on the knee of Ilmatar, goddess of the air:
One egg's lower half transformed
And became the earth below,
And its upper half transmuted
And became the sky above;
From the yolk the sun was made,
Light of day to shine upon us;
From the white the moon was formed,
Light of night to gleam above us;
All the colored brighter bits
Rose to be the stars of heaven
And the darker crumbs changed into
Clouds and cloudlets in the sky.(Wikipedia)
In the original Egyptian myth concerning the Ogdoad, the world arose from the waters as a mound of dirt, which was deified as Hathor. Ra was contained within an egg laid upon this mound by a celestial bird. In the earliest version of this myth, the bird is a goose (it is not explained where the goose originates).
According to Greek mythology the universe originated from within a silver egg, which is often depicted with a serpent wound around it. From Cosmic/Orphic egg hatched the primordial divine being Phanes/Protogonus, the personification of light, who in turn created the other gods.
disclaimer: no real eggs were broken during the creation of this piece.