I recently started a series of mini amigurumi animals, all with the following features:

These adorable amigurumi dolls are great for selling at craft fairs, as last-minute birthday, Christmas, or holiday gifts, or as pretend play toys. They're quite fast to work up, and while they require sewing of the limbs and head to the body, it's quick and easy work! Nothing complex at all. They also require very little yarn so you can make a lot of stuffed plushies with only a few different colored skeins. 

These amigurumis are designed with super bulky chenille velvet or blanket yarn.  I used Hobbii's Honey Bunny Yarn, which is perfect for a soft and cuddly little toy. You can also try out other types of fibers, such as blanket yarn, polyester, chenille, acrylic, wool, cotton and more.

Since these plushes are about 4 inches (10 cm) tall, they make great keychains too! If you want to crochet them even smaller, use thinner yarns and a smaller hook.