I am not christened and neither are any of my family but have gone to a few friends christenings. Some are very religious, some church of Scotland where there have been a few children christened just within the Sunday Church Service. Anyway I know there are some religious silver gifts and some kind of novelty type things -ie silver baby hair brush, silver birth certificate holder, money box etc. These are nice ideas but in my mind not very useful. It is not necessary to give a gift but as with any occasion I think it is nice to give a little gift to mark the occasion. I recently gave a boxed set of Beatrix Potter books (was very good price in discount book shop) - this I felt was a nice momento and something the child could keep and enjoy. Something a bit more religious would be a bible or childrens bible storied - children can never have enough books.