We didn't have any decorations at Naomi's christening party, but there was a christmas angel on her christening cake! A small glass one. I can't remember where I got it, I only remember MIL robbing my decoration box to do the cake! *L*
How about twisting white crepe paper into paper chains and having ribbon streamers and white balloons? You can get lovely pearly white ones... and your florist might have some ideas, as they use all sorts to decorate bouquets - white feathers, ribbons, paper ribbon, little fairies on sticks etc.
Pm me...
Sue