I would also recommend that she use bamboo skewers soaked in water. And I figure she will need at least two per person. That is a lot of work for the day of the wedding or even the night before, just putting the skewers together. Perhaps she can place the different pieces in separate containers and let the guests put theirs together themselves. Just have plenty of napkins handy. The containers can be kept warm in the oven on a low temperature 200ºF. or just warm. Depends on your oven. I hope she has a couple of really good friends who will be williing to lend a hand. It is nice to hear of a homemade wedding. Nowadays everything has to be bigger, better and with more bling than the last wedding.
Congratulation on your wedding. Good luck!