50th Birthday Tiara. Do you want your birthday girl or boy to be the life of the party and to wear a 50th birthday tiara? We've got them. This tiara is sparkly and will make them feel like they are the most unique person on earth on their special birthday. The tiara is made of plastic and fake jewels, and has the big number 50 on it. Most folks enjoy being the star for a day, so use it as a birthday decoration, or when they cut cake at the party. Celebrate by having each person wear the 50th birthday crown and have a memorable day.