For our Valentine's Day special, I'm sending you off to the blog of Joel Kimmel, a Canadian illustrator who runs Papillon Press. His essay, "My Illustrated Book Marriage Proposal," relates how he re-purposed an 1883 Collier's Cyclopedia into what has to be the most romantic proposal ever.
Kimmel writes: "For the final touch to the book I decided to cut a hole inside to hide the ring. When the story ends there is one final illustration with a fold up flap that opens to reveal the ring hidden inside (that's my cue to propose). I cut down about an inch into the book after gluing the pages together with an acrylic painting medium. It worked perfectly and from the side you'd never know there was a ring hidden inside."