I remember going to Pizza Hut back in the day when I would get my monthly Book It slip for free pizza from school. I just remember seeing all the red cups and associating that with pizza and it seems like every pizza place had those red cups. I think it's also time to redo my drinkware at my house with some '90s nostalgia!
I don't know why people didn't tell me that Pizza Hut was selling their classic red ups in 4-packs for $10! I would go buy some, but unfortunately they quickly sold out! They were being sold on PizzaHutShop.com yesterday, and even though they are sold out you can sign up for email alerts to find out when they have more! Some people might not get their full nostalgia fix though. Because depending on your age and where you lived, they might not be the cups you're thinking of.
There were two kinds of red cups. I remember them with textured ridges on the outside, and one buddy of mine remembers them being more flat. Pizza Hut isn't giving you an option, they're just selling the flatter version.