Post-it note with handwritten message in green marker. The message reads: "Sincere condolences to all the families. Let there BE PEACE [underlined] on EARTH and Let it Begin with ME. Philomena."

Handwritten card in pink and blue pencil on paper. The card reads: "I love you because you are kind." Signed with a striped heart. Spelling errors corrected for clarity. Smudging and staining due to exposure to the elements at the Wilkins memorial.

Handmade card in colored marker on paper. The front of the card features the word: "LOVE" in bubble letters; the letter "o" has been replaced with a large Star of David. Several smaller hearts and a multi-colored asterisk appear throughout. Signed, upper left: "Rylee Love." The back is signed, twice: "Love Rylee" in orange and purple marker, respectively. The card has been laminated.

Single page flyer. Backdrop features images of paper dolls holding hands and the image of a lit candle. Text lists date, time, and location of event, biography of speaker, and sponsoring organizations.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Tree of Life Synagogue- We in San Diego stand with you and all send all our love. Tom and Linda [last name redacted]."

Miniature New York State flag. Wrapped around stem of flag is a slip of laminated yellow paper reading, "In Memory of our Brother In Memory of our Brother SYLVAN SIMON z''l -- To his family and community we pray Tanuchamo min hashamayim. May God in Heaven comfort you. The Principals, Teachers, Parents, Alumni, and Students of Magen David Yeshivah. Brooklyn, NY." Part of a series of 11 flags, each dedicated to one of the victims. Additional photograph shows the entire set of 11.

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 made by a student from the George Washington University Hillel. The front cover contains a bilingual Hebrew and English message: "Haverim (friends) in Pittsburgh" with a Star of David below. The inside (from right to left) reads: "Sending love, solidarity, and hope. Our community is the strongest in the world! -Sam, GWU student, Colorado Springs, CO, Temple Beth Torah."

Floral tag from floral arrangement. The tag features a quote from Psalm 121:4, which reads: "Indeed, he who watches over Israel will neither slumber no sleep." The message is handwritten in black ink on a printed tag with white and purple flecked flowers.

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 student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration a leaf with geometric motifs. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Handwritten letter written in black pencil on pink coloring paper folded in half from the Dillon family. The letter inside is addressed to God, referred to as "Heavenly Father." The Dillon family pray for healing, comfort, and unity. The envelope is addressed to Tree of Life, written in blue pencil.

Card from three students [last names redacted] at Magen David Yeshivah High School in Brooklyn, Ny. Front cover features a red heart in the center with lines connecting to Stars of David on either side. The inside message has faded away due to water exposure at the Wilkins memorial. The back flap contains a message of sympathy and condolence. The card ends: "GET WELL SOON! [heart]."

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.

Post-it note with handwritten message and illustrations in green, blue, red, and black marker. The message reads: "He watching over Israel slumbers not nor sleeps." An illustration of houses on a hilltop with a river, trees, heart, and a moon and stars above, appears around the text.

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.

Preprinted card with handwritten message in black ink. Front of card reads, "You are being loved, prayed over, and held close in caring hearts."

Post-it note with handwritten message in green marker. The message reads, in Hebrew, "Shalom" (Peace). Illustrated with a green heart, flanked by stars, in the lower center.

Card from the Friendship Circle of Illinois. The front cover of the card reads: "To the Jewish community of Pittsburgh sheyichyu (may they live)." The card reads: "I feel so bad for you from now and there should be no more bad stuff and moshiach (the Messiah) should come right now!" The acronym "B"SD" (with the help of heaven) appears on the upper right corner of the left fold. There are two illustrations of large smiley faces wearing t-shirts with smiley faces and yarmulkes (skullcaps) with the Hebrew word moshiach (the Messiah).