The "Trick or Treat" square in the bottom center is a sticker, and all the other little embellishments (bat, skull and crossbones, spider, etc.) are stickers.
For the center strip, I adhered some orange glitter tape to some patterned paper, which I cut just wide enough to evenly separate the two rows of squares.
This is definitely a quick way to make some nice-looking Halloween cards - fun, too. Thanks again, sis, for a great idea!
Thanks so much for stopping by, and remember to laugh--a little or a lot--every day.