Just show your tits to your friends who hasn't seen them. But before request them to collect money. You could earn like 100 bucks from at least 5 or 10 friends. Maybe desperate guys would give more money.
You have a job, it should be easy to earn money, but it does take some time.
When I want to buy something and I have no money for it, I usually eat once every two days, go to school and work on foot, I join my friends' conversation so I could snatch their snacks, and sell some old stuff I don't even need in my house. So far it works.