I covered the Stony Brook Solar Racing Team last semester for a narrative journalism class, and I think the team would make an interesting subject for the audio slide show assignment. For more than a decade the team has built a solar-powered boat for the IEEE Solar Splash competition, but this year they may switch to a solar car. Because they are working on an entirely new vehicle, they will be starting from scratch, so there will be plenty of opportunity to capture elements of the construction. I think the sound from the workshop will also work well. I talked to members of the team last year, so I think I would be able to get access. I just need to look for a good angle that will give interesting insight into the team.