Any interesting group project ideas? Please?

Ok, so I have to think of a great group project idea for one of the courses in my college. I want something interesting but all the great ideas are already taken like solar power, electric cars, and the rainforest and how to protect it. I was thinking about talking about the differences between Samsung Galaxy's and IPhones but then I realized it was a dumb idea. I'm supposed to inform the audience about my idea and convince them why I chose this ideas or act like I'm advertising. Any ideas?

"Woe to you, Chorazin! Woe to you, Bethsaida! For if the mighty deeds done in your midst had been done in Tyre and Sidon, they would long ago have repented, sitting in sackcloth and ashes. But it will be more tolerable for Tyre and Sidon at the judgment than for you. And as for you, Capernaum, 'Will you be exalted to heaven? You will go down to the netherworld.'" Whoever listens to you listens to me. Whoever rejects you rejects me. And whoever rejects me rejects the one who sent me."