To be sure you get meaningful feedback, go deeper on the ideas. What is the need you are addressing for the individual? A feeling of control? Peace of mind? Connectivity? How do your ideas propose to meet these needs for individuals? You want to test how you meet the need, and less of a focus on the actual thing. How can you invite interaction and discussion with your user base? And keep in mind as you begin capturing prototype feedback that just like with your ethnographic research, you will want to capture video, photos, and direct quotes.
For the 5E’s, remember for each idea how your user is “enticed”. This is a big hurdle of how you will compel participation. Implementation of ideas is always the toughest part!