Look at this amazing book my parents made for the kids. It has the cool eyeball pocket on the outside that holds a magnifying glass, and then inside are pages and pages of pictures with Papa Duck hiding in them, Where's Waldo? style. (Some of them are really super hard, and I'm not actually completely convinced that Papa Duck is really in them...)
Anyway, the boys love these books! And Monkey loves his magnifying glass, as you can see!