To host a themed anniversary celebration for couples, start by selecting a theme that resonates with your relationship, such as a favorite movie, decade, or travel destination. Decorate the venue accordingly, using colors, props, and music that reflect the theme. Create a cozy atmosphere with dim lighting and comfortable seating arrangements. Plan activities that encourage interaction, such as themed trivia games or a photo booth with props related to the theme. Prepare a menu that complements the theme, including signature cocktails and themed desserts. Encourage guests to dress according to the theme to enhance the experience. Finally, consider incorporating a special moment, like sharing vows or a dance, to make the celebration memorable. By thoughtfully planning each element, you can create a unique and enjoyable anniversary celebration for couples. This will ensure everyone has a wonderful time celebrating love.