Letters can be used within a Naming or Welcoming ceremony too. Parents can write a letter for the future expressing their love and hopes.
A variation of this is to ask guests to also contribute their best wishes in a book or written on a card. In years to come these can be shared with your child as they grow.
Choosing a Celebrant to help you create that special ceremony is an important step towards making your occasion a really memorable one. Why not take advantage of the free initial meeting I offer ? I believe it is important to meet informally to discuss your ideas and what I can offer. Meeting also gives us an opportunity to explore the type of ceremony that would best suit your needs.