I've never given my Friendsgiving party a theme other than "Friendsgiving" but if you want a theme, here are some good options: A "Friendsgiving Fiesta" could be fun with a Mexican-inspired twist to traditional dishes, a "Harvest Potluck" idea could put the focus on local ingredients, or you could host a casual "Friendsgiving Brunch" with breakfast and lunch favorites instead of a full dinner spread.