Post-it note with handwritten message in red marker. The message reads: "Let love rule."

Post-it note with handwritten message in black marker. The message reads: "What happened here will not be forgotten." Signed with a Star of David.

Post-it note with handwritten message and illustration in black marker. The note is signed: "[heart] Dorothy" and features two abstract circle and oval shaped illustrations.

Post-it note with handwritten message in blue marker. The message reads: "We are with you- Love is stronger than Hate."

Metallic red rose with wire stem attached to a rock base.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of seven children holding hands around a table with a large goblet and loaf of braided bread, and seven doves. The illustration is labeled: "We are people of God's peace." Signed "-Jenna [last name redacted]" in the lower right corner. The inside contains several messages, including: "We love [heart symbol] you... Get well soon!!!!... Get well soon... I'm praying for you...hope you get better...we hope you heal fast...get well soon.

Post-it note with handwritten message in blue marker. The note is written in Hebrew and English. Translated into English, the message reads: "May God protect you when you leave and when you come. Happy Chanukah!" Signed in English by the Abrin family, followed by a heart.

Hand written and illustrated poem dedicated to the eleven leaves which feel from the Tree of Life, a euphemism for the eleven victims of the October 27 attack. Eleven illustrations of different kinds of leaves appear around the poem.

Card made by a student from the George Washington University Hillel. The front reads: "In our hearts" and shows an illustrated heart. The back reads: "Your Jewish family in D.C. is thinking of you and sending so much love your way. Love, GW Hillel."

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter is signed Aden, a kindergarten student. It is nearly illegible due to the young age of the sender.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Folded card with the "Stronger Than Hate" graphic printed in black and white on the front cover. The names of the eleven victims of the October 27 attack are written inside, followed by the following promise: "Rest in peace [heart]. I promise to fight for a world where love prevails hate." An additional message appears on the back: "May we fight to ensure this NEVER happens again. Ahava (love)." It concludes with the names of the eleven victims.

Folded card on pink paper. A faded Star of David appears on lower right corner. Blue and yellow staining throughout. Due to exposure to the elements at the Wilkins memorial, the message on this card is no longer visible.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Card on pink paper with hand drawn illustrations and handwritten note. Written in a child's handwriting, the card reads: "We love you" in the upper center and is signed "Hannah" in the lower center. Various red outlined hearts with blue, red, and green shading appear on the left; a stick figure appears on the right.

Hallmark card from a member of St. Peter's Episcopal Church in Londonderry, New Hampshire. The envelope features an illustrated heart. The front cover reads: "Peace" and features a sandy landscape with a blue sky and orange flowers. The inside reads: "I pray you will find love and peace in the everyday actions of people who care for you. We send so much love to you from Londonderry, New Hampshire and beyond. Love and peace, Erin [last name redacted]."

Note from a member of The Church at Severn Run in Severn, Maryland. The note reads: "In light of recent events, I want to send over my condolences and love. I want you to know that this is not who we Christians are. We are not hate- only love. Your community is always and forever in prayers. [Smiley face]."