I found that some people are able to make their dogs standing on four feet without the belly hitting the floor. But I couldn't understand the trick.
俄文圖樣（Pattern in Russian）：http://stranamasterov.ru/node/105178
PS: Adding cardboard paper to the body can help the dog to stand on its feet.
My son said that this lion is a character in a Japanses comic.
英文圖樣（Pattern in English）： www.ravelry.com/patterns/library/kon-chan-amigurumi---leon-amigurumi