This is absolutely true.
My favorite ice cream truck offering as a kid was the Screwball. Remember those? Orange sherbet with the gumball at the very bottom? It had to be eaten with the little wooden spoon, too, or it just wasn't as good.
Apparently Screwballs are sold in stores now. With cherry, raspberry, and stawberry flavors (apparently orange isn't made anymore-boo!), but in my world, I only love them from the ice cream truck...
Runners up for best ice cream truck novelty: snowcones, the Creamsicle, and the BombPop. Oh, who am I kidding? I love just about everything on the menu.
Do you have a favorite?