The artifacts of your exemplar need to be displayed. What were the mini projects, the studies, the notes, the extent you went in creating your exemplar? These artifacts serve many purposes.
They are roadmaps to your project, that is they will help you remember what you did.
The Artifacts teach the students your path. This shows what you did and that you cared enough that you did the project too. I think the artifacts are the heart of the project, send me what you collect and write up what they mean and how you used them.
Examples of artifacts that created the Exemplar for the Dermtech Project I wish I had my DNA-RNA notes still!
Cast Iron Toy Painting - Teaching students to paint
Video of DNA Transcription and Translation, Student made posters