I love the little playing card books. Could totally do this even with a smaller deck. 52 Things I Love About You Book (made with playing cards) - DIY Valentines Day Projects
Anniversary, Christmas, husband birthday, I made these monthly date night cards for my BF for Xmas! You can personalize everything from the crafty cards to the dates themselves!
DIY Card Little Inspiration. You could also adapt it to be a person(stick figure maybe) and the string is the arms with the quote I love you this much!