My girlfriend saw this and sent it to me. I tried it out with the kids. Super easy and cheap. All you need is plastic top from a container. Permanent marker. And we'll that's it. I didn't have parchment paper so I cover a tray with aluminum foil and sprayed it with a little oil. I preheat toaster over and then put tray in. Within seconds you see it curl up and harden. No smell- I know I was thinking the same thing "won't this stink"
Check this out:
