I’m infatuated with this idea and I was thinking about how to go about making a few different kinds of these for my kids, we love us some I Spy. I no longer own Photoshop or any of those creative suites for computers but I do have Pages with my Mac. So, I went for it.
You can download it for free here. Enjoy!
I printed a couple sheets then used my nifty large scale, straight line cutter thing to chop em down.