3 Heart Strings: How Students are Healing Their Community one MSD Bracelet at a Time. Emilee McGovernFebruary 26, 2018three heart strings, 3 heart strings, student activists, stacey gringuaz, MSD Bracelets, Marjory Stoneman Douglas High, March For Our Lives, The Never Again Movement, Never Again MSD, sofia Rothenburg, hanna guttentag, Studtens Leading Change