During my Tufts interview, we were in a group setting and the head of admissions was asking us to introduce ourselves and tell something interesting. One girl mentioned that she makes jewelry and the head of admissions asked if she brought some. She had, so he asked her to pass it around the room. He used this as an opportunity to tell us that we should bring examples of manual dexterity (if we can) in order to show that we aren't making anything up.
So I say bring it, and if someone asks to see it then it can only help you.