I found this book [My big bumper book of model animals] when I was in Egypt a couple of weeks ago. Without thinking I grabbed it, I knew it was going to entertain the little one and I for a couple of hours. And it has been a lot of fun. It is the perfect thing to do with kids when you don’t want to clean up.
And then completely by chance I came across 3eyedbear and found Sofia, she is the blue haired girl [the red haired girl template can be found here].
The site has lots of other paper toys. All you need to do is print the pdf file then cut out the model and glue the bits and pieces together. I have found that it is easier to use an X-Acto knife to do the cutting and double sided tape for sticking the pieces together.