N485WN, "Southwest Loves Kidd's Kids", pays tribute to radio personality Kidd Kraddick's charity.
The aircraft is seen here departing Terminal 4 in  November 2006
http://www.kiddskids.com/
http://www.kiddskids.com/about.html
Boeing 737-700

 N297WN operated as the Kidd's Kids aircraft in 2007
 The aircraft is seen here on Taxiway Sierra to Terminal 4 in  December 2007