Possibly the swiftest route to your roots.
Irish genealogy website directory.
www.from-ireland.net/custom/Luck-Objects
Description:
Various objects were hung in a house or kept there to ensure good luck. A caul-clay from Tory island off the coast of Donegal, or house-leek (Sempervivum) would save the house from being burned and from lightening, this was grown on the roofs of thatched houses, or in specially made niches or nooks in or about the roofs or porches of houses covered with other materials.