The idea is to pull out all the kids toys and photograph them in the style of the I SPY books. Then she used picasa to add text, and then simply printed the photos and slipped them in cheap little photo books.
I absolutely love this idea. It would make a fun travel book. I am planning to put one together for our January Cruise.
Here is the link to Delia Creates: http://www.deliacreates.com/2011/05/rainbowdiy-i-spy-books.html