In the Derry area (N Ireland), people would cross the border and walk up the hill to the restored ring fort at Grianán Ailigh and roll their Easter eggs. But I don't know if that would have been on Friday, more likely Sat or maybe even Sun after mass and dinner? People in Co Derry and Tyrone have told me of how they used to build Easter houses outside and keep their Easter eggs there. The late Seán Gallagher had a theory that this custom derived from booleying, when the cattle are driven to summer pastures and temporary shelters would be built for the people watching them.