Wow I've never ever seen one alive come to mention it...weird now I wanna look it up..lol...I'm using them to add to our fans we are putting on each chair and we are putting ribbon through one of the holes and putting our names and the date on the sand dollar...I'll show pictures once I have all the sand dollars..it was my mom's idea actually and I have all the fans, the ribbon, and little charms that say "To Love and to Cherish"..now I just need the sand dollars so we can make it a little more personal.