One unique idea for a 60th birthday party is a backyard movie night with the person's favorite movies and theater-style treats. Another creative idea is an in-home casino night party.
For a backyard movie night, decorate the backyard with several quilts and pillows propped up against or over box crates. Set up several of these seating stations with extra blankets and pillows and place overturned crates around each station for food, drinks, candles and flowers. Set up a few tables for food, theater candy, a movie-themed cake and a popcorn station with seasoning and brown paper bags. Have a drink station with several coolers full of beer, soda and small bottles of wine or champagne. Create a movie screen with a large white flat sheet secured to long 2-by-4-inch boards and use a projector to play the movie.
For an in-home casino night party, rent casino games from a reputable company and hire dealers and an experienced bartender. Instruct guests to dress in formal attire or some kind of themed costume. Serve a buffet dinner and purchase a casino-themed cake. Decorate with a card or casino-chip theme and consider a classic color palette like black, white and red. Create a playlist of old Vegas songs, including Frank Sinatra, Elvis and Wayne Newton.