I have been wanting to make a Quiet Book for my boys for sacrament meeting. I haven't quite got the motivation together to do it yet, but I did find a printable book that is very easy in the meantime! Instructions can be found here. It's really easy....just print out, add in some of your favorite pictures where applicable, then laminate. I found some colorful book rings at Walmart to hold the pages together. You could also stick the pages in page protectors and place in a 3 ring binder.
And for those who have their act together and want to make a real quiet book like my mom did when I was a kid, there are good instructions here