Seattle-based illustrator Dain Fagerholm has blessed the world with what he calls his “stereographic drawings,” animated GIFs that trick your eyes into seeing a crude 3D effect by quickly switching between two similar images drawn from different perspectives. He’s got a blog that is filled with these shifting images that evoke childhood memories in all of us. I’ve shared some of my favorites in the gallery below. Click here to see the rest of Fagerholm’s collection.