Frankly Speaking: 9 Ideas for Making Print Pop
Concord Litho in Concord, N.H., adds scents to any substrate. Its holiday wrapping paper exudes the odor of pine needles when scratched. You could have a printed picture of an orange with the texture and odor of the orange.
These strange-looking patterns of square spots are actually unique bar codes. When scanned by smartphones, they link to a website. You see them on signs and as part of printed ads. I expect to see them on book covers where they link to a video clip about the book. Why scan the book when you can "scan" the book?