Post-it note with handwritten message with blue marker. The message reads: "Stronger Than Hate!" Illustrated with a heart and signed: "TR."

Wooden pedestal painted white with white Star of David and red heart affixed to front. Handwritten in pencil and black marker on the Star of David is the name "Irving Younger." Collaged onto the heart are white pieces of paper and a translation of Psalm 34:18: "The Lord is close to the broken hearted and saves those who are crushed in spirit." Accompanying image shows all 11 Stars of David in the series.

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.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The front cover of the letter reads: "Letters." The inside reads: "My prayers and love are with all of the members of your synagogue."

Note from a member of The Church at Severn Run in Severn, Maryland. The note is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside contains messages of condolence and love. The church's contact information is included on the back of the envelope.

Handmade cardboard poster with black, red, blue, yellow, and green ink, reading: "Stronger Than Hate." The Stronger Than Hate Steelers' logo with the yellow Star of David appears in the center. The reverse, written in purple, pink, blue, and blank ink, reads: "No way to prevent this- says only nation where this regularly happens."

Folded card with pencil illustration. Cover features flower on ground under words "Just remember..." Interior features illustration of heart superimposed on planet Earth with human figures dancing on it and the words, "We Are All Jews Together." Additional note reads, "Please know that Beth Chai Congregation members like us are thinking of you. Karen & Howard [last name redacted for privacy]."

Post-it note with handwritten message in black marker. The message reads: "May their memories be a blessing." Signed with a heart and a Star of David.

Card featuring reproduction of a nineteenth century Japanese woodblock print depicting the grounds of the Kameido Tenjin Shrine in Tokyo, Japan. Interior includes handwritten note from two individuals who identify as a Catholic and a baptized Episcopalian, respectively.

Post-it note with handwritten message in black marker. The message reads: "We wish you peace and love from NY. The Brodys."

Card made by a student from the George Washington University Hillel. The card reads: "From our community at GW, you are in our hearts. We pray for better days to come, for mitzvot (good deeds) in honor of those lost, for actions of light to crowd out darkness in Squirrel Hill and beyond."

White posterboard with handwritten messages on either side. The front side reads: "154 mass shootings this year alone. How many lives are worth your assault rifle?" An asterisk connects to the following sidebar: "None committed by black men, illegal aliens, or women." 154 tally marks appear above. The back reads: "Life, Liberty, and the Pursuit of Happiness."

Post-it note with handwritten message in blue ink. The message reads: "I will raise my children Jewish #neverforget." Color bleeding due to exposure to the elements at the Wilkins memorial.

Folded card with colored pencil illustration. Cover shows a whimsical landscape with a tree, balloon, bushes, rainbow, flower, and a sun. Inside reads: "Stay strong, we're all standing with you. A little hope can go a long way [heart]. Best wishes; this too shall pass". Back cover reads: "2018."

Poster with collage of photographs showing scenes of interfaith support and a quotation of Ecclesiastes 4:9-12.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of a turtle with floral and geometric motifs on its shell, legs, and neck. The back contains a handwritten note, as well as the stock signature: "From your friends at West Allegheny Middle School."

Handwritten and illustrated card on light blue paper. The card reads: "We love you!" Signed: "Your friend, Bennett." Illustrations of sun, various flowers, and five hearts appear in the center.

Card from a congregant at the Holy Angels Parish. The front cover contains a stock illustration of a haloed dove flying in front of Noah's ark. Signed "Jack [last name redacted] 5th grade." The inside reads: "God Loves You. We will remember you. Jack Grade 5."