Oh, I remember one of my favorite souvenirs from the late 70's. It was this little box with a cartoonish image of "It's a Small World". It had a pull-string with a large and colorful ball at the end. When you pulled the bead string, it would play "It's a Small World" in a chimey music-box tone. I loved that toy so much!
When I was young I had a red "I'm Goofy about Disneyland" Vari-View lenticular button. I was happy to find a replacement on Ebay several years ago. (All right now; show of hands! How many of us are guilty of re-buying our childhood Disney treasures?)