If you have a large collection of buttons, you can easily sew 2 turtles.
The buttons are sewn on to thin felt. Two small wooden beads are sewn on to represent eyes. You can stuff the shell with fiberfill.
The shell is sewn onto the main page by using lock stitch.
The pdf with the templates and pictures for the touch-and-feel book can be found on my website.
Have fun reproducing it!