It is called ‘amigurumi’ in the art of making various toys, doll, animals, key chains etc… by using knitting needles and frequent needle technique. Almost any kind of amigurumi can be done, but the rope you use should not be very thin and it is better to have a wool that does not become hairy over time. In addition, if you make your toy with durable rob it won’t break off.
If you want to start making, you should buy aluminum crochet and thick wool which are not thick-tipped from a shop selling knitting materials first. A loop marker is also useful because you will always be counting the stitches. You will then have to buy additional items depending on the shape of the game. To embellish your toy in more detail, you must have amigurumi eyes, staple fibers to fill in the toy , thinner ropes and needles for details and additional pieces you want to decorate.