[Shell_of_the_South]

Yes, you can buy a refillable cup in the parks without the meal plan. We bought one in 2007 but I can't remember how much they were. I think you can get them at pretty much any place in the parks that sells fountain drinks.

And you're correct, you can buy the meal deal at the park:

You can purchase a Universal Meal Deal* ticket online, at the theme parks' front gate and participating Meal Deal restaurant locations.