I've been on the road all this week with limited macro photo taking and editing abilities, so am using a "metal" picture from a few weeks ago - sorry!
These are little magnets that you stick together to make interesting shapes. The stack is about 1.5 x 2 inches. The shininess and reflections mentioned in this weeks challenge discussion was definitely an issue. All the little white rectangles are reflections of the lights around the table, but at least the camera (and me) didn't show up. HMM!