First Communion Flower Choices For Little Girls: White Roses. Little girls making their First Communion traditionally wear a headpiece with their First Communion dress. If you have decided against a veil, a flower headpiece is a lovely choice. Miniature white roses bobby pinned in your little girl's hair or affixed to a white headpiece looks absolutely beautiful. Many churches discourage little girls making their First Communion from carrying anything in their hands, including small flower bouquets as they are distracting during the Mass and are easily left behind.