Get some information from these sites

http://www.educationworld.com/a_lesson/archives/holidays.shtml
http://www.mothersdaycelebration.com/mothers-day-around-world.html
http://www.topics-mag.com/internatl/holidays/festivals.htm
http://www.gourmetgiftbaskets.com/Holidays-Around-The-World.asp

Which festival or special Day seems interesting for you?