Take your project as you currently conceive it (however foggy that may be).
Step one: Identify and describe three possible units of analysis. For each, muse a bit about what makes it intriguing or intimidating or boring or provocative.
Step two: For one of these three (the one that most grabs you), try to identify at least two of each of these types of variables.
Step three: Identify at least three different research questions from three different cells corresponding to variables you were able to identify in the previous step.
DON'T stop until you have a really good idea!