select a variety of napkins that match your party decor. premeasure your ribbon so you know exactly how long you want it.
A) leaving the napkin folded, cut through all the layers from the bottom to about 1/2 an inch from the top seam. make strips about 3/4" wide all the way across.
Then you hang it up and say "TA-DA!"
This is literally the easiest thing ever and it added such a colorful punch to the backyard party.