It's a Merry Christmas When Pigs Fly by George Wells

Santa goes to the barn and discovers someone has taken his reindeer. In each stall is a pig with a funny name. As the time is running short before the big run, Santa steps up to this new challenge and begins training the pigs. Because the pigs are so smart, Santa is able to deliver the toys around the world without a problem. These eight pigs, with funny names, will always be remembered as the pigs that saved Christmas.