6 January was considered bad luck, and all the holly that had been used as decorations would be burnt. Local Catholic churches would often have a larger scale crib on display during the Advent period. Bringing home a few strands of straw from a church crib was thought to bring good luck, with those who lived in thatched houses adding the strands into the underside of the thatch. Since the late twentieth century, these crib displays are also placed in prominent public areas such as town squares, with the Dublin "Moving Crib" with live animals at the Mansion House one of the most famous versions. Santa Claus Santa Claus, Daidí na Nollag (lit. father of Christmas ) in Irish, is known in Ireland and Northern Ireland as Santy or Santa. He brings presents to children in Ireland, which are opened on Christmas morning. It is traditional to leave a mince pie and a bottle or a glass of Guinness along with a carrot for Rudolph. Most big shopping centres have a Santa's grotto set up from late November so that shoppers and visitors with kids can visit Santa and tell him what they want for Christmas. Christmas Candle The placing of a lighted candle in the window of a house on Christmas Eve is still practised. This is also called Coinneal Mór na Nollag is placed at the window to welcome people in need of shelter. Its primary purpose is to welcome Mary and Joseph. In some houses, it was traditional for the youngest child or the mother of the house to light the candle. In many parts of Ireland, including County Armagh, it was traditional to leave the door unlocked as well. In some areas of Ireland, it was customary to light 3 candles, representing the Holy Family. If the candle was extinguished unintentionally, this was perceived as a bad omen. In the period before rural electrification, these candles would have had a significant effect on the rural landscape at night. There are some traditions in which the candles burned at Christmas would be used for divining the future. The tradition still persists, but often using an electric light in place of a candle. Christmas swim In the late twentieth century it has become traditional to swim in the sea on Christmas morning. This is often done in aid of charity. The Forty Foot in Sandycove in Dublin and