Depending where you live a lively and interesting topic would be guerrilla warfare during the war of independance. This topic is especially suitable for people living in the south of the country, or you could research the operation of flying columns in ireland 1921-1922. An extremely interesting topic si The role wormen played in the 1916 rising and why they have been air brushed out of history. And your local library will have plenty of information. If doing women in 1916 rising don't forget the famous air brushed photo of Pearse surrendering
http://www.irishlabour.com/dublinopinion/pearse.jpg
and note that the woman standing beside him was air brushed out, only her feet and the hem of her dress visible.
Good luck
