Our stamp club has been experimenting with paper napkins and what a fun technique!
You take apart a napkin until you're just left with the decorative side. Place card stock on top of scrap paper, then plastic wrap and then your napkin with another scrap paper on top. With your iron on medium hot, iron this sandwich until the napkin is adhered to the card stock. Be careful not to get plastic wrap on your iron.
I die cut a Memory Box butterfly from card stock along with the matching cut out die from 40# vellum. The sentiment is also a die cut from Memory Box.