Check out the site from Iowa Big Schools. Many of these projects could be modified to your community: http://projectbbq.com/BBQ/public.php
This looks like an interesting class from the University of Pennsylvania. It is free and self-paced and should take around four weeks to complete working 3-4 hours per week on it. Check it out:
If you interested in programming and creating a game or an app you might consider the development program: Ready. It is much more sophisticated than Scratch but is still a visual programming environment. It is built on top of the Unity 3D environment.