I used to have that same shirt! Got it my junior year of highschool. If I remember correctly it was a promotion where if you ordered something many burritos in a certain amount of time you could get the shirt or other rocky and bullwinkle promotional items. I loved that shirt!
I remember back in 1995 our first Walmart in town opened (and my mom said the store didn't have food at the time) but I do remember the toy aisle was small (I purchased mostly Robotech toys and some LEGO there in 1995, not sure if you ever heard of Robotech.) My hometown (Ft. Wayne) had no gas stations within almost a mile and a half away from our work place in the nineties, many times running on fumes to one that was opened after work at midnight.
I think Rocky and Bullwinkle was my favorite cartoon ever. Natasha and Boris. Peabody and Sherman and the Wayback Machine. Fractured Fairytales. The best! (the narrator!!!) 🤎
I just wish Mercari would include the fees into the buy it now price. Theoretically if set 2316 isn’t on bricklink after creating a listing for it you could sell used copies and set the market