On the challenge blog where they show the sketch to use, in corners were staples. I'm sure this is to make the sketch presentable, and it is, but I was also so inspired by them that I added them to my project too. :D It's been a while since I've used staples - I really should put that closer to my craft table. LOL
I hope you've enjoyed this inspiration and we all hope you'll come on over and play along!