My favorite design uses washi tape adhered on a diagonal.
I also tried a simple card with just a few strips of washi tape along the bottom, a chipboard tab & a stamped Hello. After I adhered the card front on, this one didn't look finished to me, so I grabbed my red pen and added some faux stitching. What do you think? Did that finish it off?
For these last three cards, I used chipboard pieces rather than words.