Websites for some fun with St. Patrick's Day:
http://www.youtube.com/watch?v=IA-YGKN7k_o&feature=related
http://www.youtube.com/watch?v=ztEUNvPFBRg&feature=related
http://www.starfall.com/n/holiday/clover/play.htm?f
http://funschool.kaboose.com/fun-blaster/st-patricks-day/games/game_shamrock_streamer.html
http://www.akidsheart.com/holidays/stpat/differencestpat.htm
http://www.akidsheart.com/holidays/stpat/lepcoins.html
