I think one of the coolest projects my class undertook with the iPads was an iMovie project. Here is the assignment product descriptor.
The total project took 3 days. Day 1 was spent introducing the topic, showing the students how to use iMovie Trailer, and splitting up into groups.
Day 2 and Day 3 the students worked on their movie trailers. This was more than enough time. All groups finished before the end of day 2.
Here is my favorite for creativity:
As a class we then showcased the video's. Each group showed their video and then talked the class through the meaning of the amendment and how it effects us as citizens.