Making a Pi Necklace
http://mathforum.org/teachers/middle/activities/pi_day.html 

Pi day songs
http://www.winternet.com/%7Emchristi/piday.html

 Pi Day (Grades 6-12)
http://www.enc.org/features/calendar/unit/0,1819,34,00.shtm

  Pi Day
 http://www.exploratorium.edu/learning_studio/pi/pi.html

Pi Day Resources

 http://www.mobot.org/education/megsl/pi.html

 Pi Land
 http://www.eveandersson.com/pi/