Looking for some cool and unique Happy 50th Birthday party themes? Then I've got you covered with ten really cool ways for 50th birthday wishes for the lucky guest of honor. These include birthday party themes for both men and women that are trendy and timeless. A huge thank you to Barbara for taking the time to leave a comment and ask for some unique Happy 50th Birthday party ideas. I've featured so many Adult Birthday Party themes over the years, that I didn't realize that I haven't covered just the 50th birthday parties one place. So thank you Barbara! You rock.