Mr. Davis, the former commissioner of parks and recreation, is now such a fan of the installation that he was wearing an orange hat and lapel ribbon.

The new dress code also relieved men of the familiar black tie, which was replaced by business suits and patriotic lapel ribbons or tiny flag stickpins.

It was her seniors group at St. Mary's Church in Bensonhurst that had made the white lapel ribbons worn by Mr. Tolan and others.

Outside, there was clearly a difference of opinion, as school employees milled about, some wearing purple and black lapel ribbons signifying opposition to a takeover.

Friends and family members of the defendants sat behind them in a small spectator section, many wearing bright green lapel ribbons to indicate support.

The Gallagher family and many other parishioners wore lapel ribbons in the school's colors, blue and gold.

The city is distributing 25,000 lapel ribbons with mockingbird logos, hoping to encourage participants in the program to strike up spontaneous conversations.

And a silver lapel ribbon.

Ms. Offensend remembered a hostess who used to hand out plaid lapel ribbons to her guests, so everyone knew what party they'd gone to.

The cover bears an image of the red white and blue lapel ribbon that is a memorial to the attack victims.