Yes, I totally scraplifted this idea last year.
I fell in love with Amy's card the minute I saw the little monsters peeking around the edges inside. I had to make a few substitutions on my version, such as using an embossing plate to create the spiderweb background and replacing the twine embellishment with a spiderweb border (this was prior to my amassing a lifetime supply of baker's twine). I couldn't find the stamps she used, but I found some little creatures I thought were cute and worked especially well for children's cards. And since I was too lazy to even come up with my own idea, it should surprise no one that I simply stamped my monsters in black ink and called it a day.
Amy has a great video tutorial on her blog if you'd like step-by-step instructions on how she created her card.
Thanks for looking!