Ecto-cooler, you can make at home. I have a recipe for Crystal Pepsi that is spot on(but you need to carbonate with CO2, not yeast). All MT. Dew variations, Pepsi Blue, can also be made.
Wonder Balls are seasonal, Gator Gum is still available, squeeze-its and Mondo are still for sale, Koala Yumis are still sold but not as Koala Yumis, Dunkaroos are still sold at dollar generals and a few other local shops, Magic-Middles used the same recipe as a Swedish cookie, and can be found in some international stores(forgot the product name).
While I wouldn't say never, because who knows what will make a comeback(or "throwback".) French Toast Crunch, Oreo O's, Butterfinger BBs, Strawberry Twinkies(not strawberry creame), Dorito 3Ds, Lime flamin hot Cheetos, Waffle Crisps, Four Loco, Heinz EZ Squirt are actually accurate.
Jousta is one that I have no clue about, nor do I know WTF it is.
BTW, I can make just about any soda that ever came out retail, including a ton that is completely homemade. If anyone wants to learn about soda making, I guess we can do a soda-pop DIY thread, beer brewing ect. I was a serious hobbyist for a long time, until I became sugar conscious.