I am not religious (have given this a lot of thought, was raised catholic), but I still wanted to celebrate the arrival of my son in the world and say some nice things about him. We had a Humanist ceremony, but I hate the term "naming ceremony" as he had had his name for 9 months by then, so we called it a "Welcoming Celebration".
Humanist "minister" did a fabulous job of bringing together soem very toughtful and though provoking readings and wleocming DS into the family. We talked about why he had his name(all family names), how a child brings together families and generations, new life, new beginnings, the future all that kind of stuff. And it was all personal to us, not dictated by the Book of Common Prayer.
My Catholic mum was very
at first, but was was moved by the whole event and very full of praise for us doing something we want rather than what convention expected. We were also able to hold it in a location that is very significant to us.