I'd play the .50 turbo sit n goes if I only had a few dollars to work with. They are very donkish, and you would have 5-6 chances to do try and get a prize. Doing it like that stretches your bankroll compared to playing one MTT for your roll.

Another option is the quarter quicky and fast fifty tournaments merge has. Again, since your bankroll is so small, you want to stretch it out as far as possible and try and give yourself as many chances as possible.

It's reccomended that you put no more than 2% of your bankroll into any tournament. That's not possible when you only have a few dollars to work with, but that's a good guideline to go for once you have a little to work with.