Build a Website like Olx or quikr which are ad posting classified website.
After building add Google adsense, adwords and do whatever need for more and more traffic . So that website can earn per day $20 to $40.
Note that,,,,,,, don't bid if you can't do. I will create Milestone with $50 . And I will release the time website is getting more and more traffic so that minimum $10 , I am getting from adsense and all.
and then again i will create milestone with rest amount and i will release the time website will earn more than $20 per day.
This is the complete project. Read before biding.