Planning a weekend hackathon next week with a couple fellow coders.

I wonder what we’ll come up with.

If you have (free-no-strings-attached) suggestions feel free to leave a comment.

Requirements:

1) Needs to be minimal support/maintenance (we all have day jobs)
2) Probably a Ruby on Rails app (Rails 3.0 most likely just for the exposure)
3) Looking for something with clear monetization (one of the things I want experience with is the money-taking/ordering process)
4) Doesn’t need to be a Facebook killer. Just looking for something fun and good experience