Amigurumies are crocheted or knitted stuffed toys. This is actually a Japanese art, where different figures (mainly animals) are crocheted and then stuffed with cotton, cloth or seeds. Once we get to know the technique, we can make our own designs. There are several simple patterns in the Internet that we can use as an easy start. This mouse is an example:
Learning how to make spheres may be very useful for many designs, since most amigurumies are made of several spheres of different sizes.