I have been to a couple of Christenings this year, including Christening my own daughter Charlotte. You can read about the day here.
It's hard buying Christening gifts as anything that has a biblical them, lets me honest can be old, dowdy & generally foul!
I have designed 2 cushions which still have a biblical theme, but feature a whimsical little church, a few crosses, some gorgeous butterflies and tulips, and even an owl. The design can be personalised with any wording you desire. Instead of Christening it may be 'baptism', or 'naming day', anything that will represent your celebration.