This thread kind of reminds me of the wedding I played at many years ago... I was the regular substitute organist at our church, and thus picked up a wedding to play. It was the first time I had ever seen one where the ring-bearer was all of three years old (at best). Rehearsal went without a hitch; little ring-bearer paraded around with his pillow and actually went where he was supposed to go, for a wonder. You'd think nothing could go wrong, right?
Well, apparently somebody decided that it would be a good idea to tie the real rings to the ring-bearer's pillow, because he could handle this responsibility, indeed. Um, not a good idea. I had a clear view of the whole ceremony, since the keyboard was right beside the wedding party, and I got to see the ring-bearer parade up with... an empty pillow. The bride looked at the groom in horror, the groom looked at the bride in bewilderment, and the minister patiently said to the ring-bearer, "Where are the rings, son?"
The angelic little tyke smiled beatifically and said (very loudly and happily), "YUM!"
Have you ever tried to suppress laughter that you know will get you killed if you let it out? Oh, dear heavens, I just about ruptured myself--I was terrified that the bride would come over and clock me if she heard it! The quick-thinking matron of honour whipped off her own wedding ring at that point and offered it as a stand-in, and the wedding went on... even though my playing was a little wobbly at first because I was giggling to myself so madly!
I don't know if they ever got the rings back... or, indeed, if they even wanted them anymore, considering where they'd been.
Lesson learned: Rings on a ring-bearers pillow should be decorative only.