reusing the carton

I thought rather than giving the consumer a set second use idea for  the packaging, I would leave it open to them, creating a challenge this could be turned into a competitions to promote the company and being eco friendly. Below is a few of the ideas I had, which could be put on the packaging as a starting point for customers, the company website could be added at the bottom, if a competition is set. 

Reviewing the idea  

Advantages

- Materials of the carton are made from recycleable parts 

- Is known to be able to contain liquids 

Disadvantages

- No handel 

Considerations which I missed
- How it stays together, eg glue
- How it will be packaged for transporting