Buy something you REALLY want. If you don't REALLY want any thing right now then put it away and save it for when you do want something. Then you won't have to save up for it because you'll have 50 bucks!!!!! Yeah!!! Oh..... HAPPY BIRTHDAY!!!!!
buy as many war heads as possible, and see how many you can eat in 10 min. Do this once a day until you run out :) ~OR~ You could buy a ton of boxes of mashed potatoes, and make a giant mashed potato statue of your favorite animal! :)