A Chrome plugin to track how much time and where you spend browsing the internet per day. Good for people who might want to lower their screen time. This would be attached to a web interface where you could see what your favorite sites were, your week-over-week change, etc. Similar to an open-source version of RescueTime.
How much experience does your group have? Does the project use anything (art, music, starter kits) you didn't create?
CodeDay Labs team in the intermediate track.