I love the book idea, as I'm with you in detesting cr*ppy plastic party favors. But one favor idea that's pretty good, & inexpensive, would be pkgs of those glow-in-the-dark stars that the child can affix to his bedroom ceiling. You could package a little paperback with some stars.
If you're afraid of butter, use cream. ~~ Julia Child
As you cook, you enjoy omniscience about food that no amount of label reading can match. Having retaken control of the meal from the food scientists, you know exactly what is in it. (Unless you start w/cream of mushroom soup, in which case all bets are off.) To reclaim control over one's food, to take it back from industry & science, is no small thing; indeed, in our time, cooking from scratch qualifies as subversive. ~~ Michael Pollan