Weddingbee boards

I love the idea of using a surfboard or a life preserver and having people sign that.  Or have guests fill out cards and tie them to an anchor or something.  Or you could use postcards and have them sent to you guys over the next year.  Or maybe use a picture book of the area and have people sign the pages (or a map of the area).  Or have people sign the inside of shells (or sand dollars) and put them in a beautiful glass vase in your house.

@MsHymanRoth: We're doing something really similar, only we aren't using stones. I'm going to 3 looooooong strips of ribbon together at the top, and then hang it somewhere in the lobby of the church. One of our ushers is going to explain to guests that "love is what ties this couple together, and that they are asking that you share in that" (or something along those lines) and will ask them to "tie a knot in one of the ribbons" to symbolize their love and support of our marriage. It's actually a take-off of a Pagan tradition, where the officiant of the ceremony would literally tie the couples hands together at the wrist with a length of rope or ribbon. That's where the phase "tying the knot" comes from. :) Since I am Pagan, I'll display it on my altar I have in my home, as a constant reminder that no matter what, my family and friends love us and support us.