The CO.LAB in Chattanoooga, TN hosts an event called 48-Hour launch where teams have 48 hours to form and execute on a project or idea. During the 48 hours they collaborate on a single idea, completing as many necessary components as possible all while preparing for a presentation at the end of the event.
I worked on a team whose product was CHActive, an app that would all users to post pick up games and allow other people in the area to participate. I worked closely with the team leader to advise the brand creation, and then created mockups for the simple website promoting the app.