You must use a formal design process:
Brainstorm : Sketch : Create : Revise
You should pick a concept that is practical.
Your concept should be a solution to a problem that affects a community of people or an individual person.
Your entire project must have the following design elements:
1. An attractive and interesting package or presentation
2. At least THREE designed elements
3. Instructions or an introduction. This can be a separate design or part of the packaging. It should be designed and formatted. I am not looking for a document from microsoft word.
4. A color scheme
5. Any photography or vector work must be original
6. Any objects needed to complete your design must be real in your final presentation