uni activities sure love cryptic last moment "oh make sure you have x,. y and z for tomorrow"

i need a "red and a yellow product"
i barely own red things

looking around and so far:
- red usb type c cable

- red glasses case

@f0x tomato juice?

@stapper it really wasn't that important in the end they'd ask a question on video call with yellow=yes, red=no and then hold your thing in front of the webcam