I did volunteer to make the christening souvenirs, though it was a bit late. I didn't have time to experiment with other designs, so I just played safe and picked a Japanese pattern for a mini bootie. I modified it a bit, and minimized weaving of ends, (which takes up a lot of time since I needed to make 60 pieces of booties!). I planned to make 30 pairs, but fell short by 4 pairs.
Maybe I can share written instructions for these, later.
Btw, I got the free printable gift bag template here. I reduced the size, to print 2 gift bags per sheet. And the souvenir item fits perfectly in it too :)
And here are some of the baby crochet designs that I made a while back. It isn't much, so I hope I can add to it. Also its very warm here, and most booties, hats and mittens might not be of much use.