What is a good homemade toy for a toddler?

I am in a child development class for school and we have to make a child's toy. What toy is easy to make that also allows the child to learn and interact with?|||My kids loved simple stuffed animals made from a towel or baby blanket with embroidered eyes and nose. You can get stuffing at Walmart for $2 or $3. Thread is 50 cents for sewing and 25 cents for embroidery.





For interaction you can have an attached vest that buttons, ribbons that tie, a voice box inside the toy that cries when you turn it upside down...etc.....





Here are a few sample patterns / directions for free:





http://www.bellaonline.com/articles/art3鈥?/a>





http://www.tinybirdsorganics.com/organic鈥?/a>|||It's really easy to put together a little wooden car, you can just google it and you'll get speks and everything, but the cool part about this toy is, under supervision of course, the toddler can paint the car with washable paint to his or her own liking.