"It's my lucky charm, be sure to bring it back to me."
— Kairi, Kingdom Hearts
"My favorite blue ribbon. Take it."
"'Take it?' But what could..."
"Just take it!"
"Fine! Yes ma'am!"
— Kaoru and Kenshin, Rurouni Kenshin
Throughout history, countless anxious women presented their menfolk who were going into battle with pictures, amulets, pieces of dress(including intimate ones), and other souvenirs...
Martin van Crevald, The Culture of War.