I made this journal for a friend using LilyPad LEDs, a Tiny Sparker, and watercolor paper decorated with liquid acrylic ink.
Watch it Twinkle Here:
The book measures 5" X 7". The covers are made from binder's board. The book block was sewn together with linen thread.
I cut a section out of the book block in order to accommodate the battery. I had to cover up the beautiful blue paste paper on the inside covers, because I deconstructed the book in order to add electronic components after having already assembled it.
While making this was a good experiment, I don't love the exposed electronic components.