Here's a collection of my favorite close-up / macro shots featuring the use of black foam core board. A tabletop project like this is all the interplay of light & shadow. Seashells are currently my favorite subjects to use with the black foam core board and side-lighting is essential in creating the desired pockets of light & shadow. I hope you enjoy them! Tony 1. 2. 3. Additional use of mirror, of course! 4. illuminated. Light source placed underneath shell. 5. 6.