An eagle or a dragonfly or a butterfly represent freedom and carefreeness ;)

Les années folles (The crazy years) were the 1920 ies decade, from the end of WW1 to the 1929 crisis.

France was prosperous at that time and people enjoyed life with carefreeness.

Okonkwo's wineglass, that of a human skull, symbolizes Okonkwo's prowess as a warrior, and his warlike demeanour. It also shows how caught up in being a warrior Okonkwo is, as his life is not as balanced as others in his village.