Step 1: Step 1
Take a piece of cardstock and cut it to the size that you will need, based on the size of your paper napkin. Set it aside.
Step 2: Step 2
Open the paper napkin completely and cut off one of the fourths of the napkin to be used for the card.
Step 3: Step 3
Remove each layer of paper from the front image of the napkin by carefully pulling off all the layers until you only have the main image; cut it larger than the cardstock so that there is an inch excess on each side of the cardstock.
Step 4: Step 4
Place a few sheets of scrap paper on the ironing board and place the cardstock on the top of the pile.
Step 5: Step 5
Cut a piece of plastic wrap to be one inch larger than the cardstock on each side. Place it over the cardstock.
Step 6: Step 6
Place the paper napkin image face up on top of the plastic wrap and top the pile off with another set of sheets of scrap paper.
Step 7: Step 7
Turn the iron on and set it on medium. With a little pressure, iron over the scrap paper and the layers of napkin, plastic wrap, and cardstock for 10 to 15 seconds.
Step 8: Step 8
Check to see that the napkin has fully fused to the cardstock. If it hasn't, repeat Step 7 until the napkin is completely fused.
Step 9: Step 9
Cut off the excess plastic wrap and napkin after you've let the cardstock to cool for a few seconds.
Step 10: Step 10
Tape or glue the cardstock to a blank greeting card as you wish and let it dry before you write anything in it.