"The Parks and Recreation Committe's approval of the bandshell display comes with the provision that non-Christians be allowed to add their symbols."
No problem. Just post the symbol for the "Freedom from religion foundation" off in the grass: (.)
The entire history of the United States argues against the judical activism of the very liberal court which reinterpreted the first amendment to disagree with American history.
Nativity scenes, crosses, Christian Christmas decorations, speaking of the creator in government documents such as state constitutions etc. was never considered a violation of the first amendment. The liberal revised version of the constitution which is at war against conservative Christianity disagrees with the truth and is in violation of the real Constitution's intent.