Napkin Rings

Last night, I was teaching a dining etiquette class and was asked the following question: "where does the napkin ring go after you remove the napkin?"  

The answer: A napkin ring is placed to the left of your plate, above the forks.  It does not belong to the right of your plate where there is  stemware and can cause accidents.

After the meal, the used napkin's center is pulled through the ring, and then the ring is placed on the table with that tip of the napkin pointing to the center of the table. 

If it is a casual family dinner, it is very likely the gently used napkins will be used again at the next meal.  To avoid napkin ring confusion family members should have their own distinctive ring, like the set below. 

Lenox China Butterfly Meadow napkin rings available here

If it is a formal dining affair, the napkin ring serves no official purpose other than ornamental (since the napkin isn't going to be reused), but the napkins still go back in the ring.  

Setting a pretty table makes family meal-time more special.  Cloth napkins are nicer than paper napkins.  We use cloth napkins in our home, but I have yet to use napkin rings but am now on the hunt for some.  Do you use napkin rings?  Does anyone have any suggestions of where to look?