It's not that old, but in 1980 Topps issued a set, 54 I Think, of multi sport comics, including a baseball subset. It was marketed as Topps Thirst Break Gum. The gum was not flat but a small piece, similar to Double Bubble. The comic was wrapped around the gum, with the image on the gum.
I eventually built the full set, opening several "packs" to do it. This was post 2000. The unopened gum packs and even boxes of it were easy to find. But by then the gum, which I think was originally orange, was green and very gooey.
It was hard to separate the comic from the gum and the comic needed a lot of clean up.
I offered pieces of gum to people I knew and a bounty if anyone would chew a piece and provide evidence of same. Only on taker on chewing. ( it was someone you know Anthony)
I still have a bunch of unopened pieces. No telling what color they are now
