You boys sure have some great stuff! A pleasure to see.
The Sylvan Sweets order card would fit the call of the question; the flip books are uncommon but findable, but the order cards, yeah, not so much. Took me a few years and a lucky break at the 2019 National:
Now this one is modern (1982) but I had never seen one before I added it to my Aaron collection:
From a tour of the Korean professional baseball league that Aaron and Ernie Banks (among others) did in 1982. Not sure who made it since I don't read Korean but the mascot looks like a wiener in formal wear. I dunno.