I was saved 20 years ago when my kids were very small. When Christmas rolled around that year, it occurred to me that if Santa was not defined as a fairy tale, not only would I eventually be found out as having lied to my children, I was more afraid they would someday see Jesus as a fairy tale. So I told them the story of Santa Clause and that alot of kids think he's real and they didn't need to tell them otherwise and we celebrated the birth of Christ and Santa became part of the celebration in a storybook kind of way.