Dave Barrie (flickr 2008)
Record for most people buried in the sand on one beach:

524
On July 18, 2010, 524 were buried up to their necks on a beach in Clogherhead, Ireland, breaking the previous record for most people simultaneously buried in sand -- 342 -- which was set in France.
Source: Irish Independent, 7/19/2010

 
   
  Pounds of fireworks sold in the U.S. in 2008:

213.2 million

Source: The Columbus Dispatch (Ohio), 6/26/2010

 
   
  World's longest line of pennies:

40 miles
On July 11, 2008, a group of people in Fort Scott, Kan. finished the construction of a 40-mile chain of pennies in a school parking lot, the longest penny line in history.
Source: Commercial Appeal (Memphis), 7/13/2008

 
   
  Record for most Elvis impersonators in one place:

147
On January 13, 2007, 147 Elvis impersonators gathered in Parkes, Australia to sing "Love Me Tender", breaking the previous record of 78 for most singing Elvis impersonators in one place.
Source: Canberra Times (Australia), 1/14/2007