A great way to spice up your decorations for your 50th birthday without looking like a kid party is with a simple trick. Forget about streamers and posters, that's not for you. You want a nice polished and extinguished look. This can be accomplished with wall lights. On amazon they sell for pennies, so buy a bunch and go nuts. You can use them over and over again. Just don't lend them out, they may go home with someone as a parting gift. Enjoy your event, and I hope its with us.