The isolation could be a spooky element. In the Big Brother house, contestants are cut off from the outside world. In a horror story, this isolation could make them feel more vulnerable to unknown threats. For example, if there were strange noises or events, they couldn't just run away or call for help easily.
The cameras everywhere could be spooky. Normally, they are for the show's production, but in a horror story, they could be seen as eyes constantly watching. What if the contestants start to notice that the cameras seem to be moving on their own, focusing on certain areas where strange things are about to happen? It would give a sense of being constantly monitored by an unseen and possibly malevolent force.
One possible horror story could be about a contestant in Brazil Big Brother who starts to experience strange things at night. They hear unexplained whispers in the corridors of the Big Brother house. Every night, the lights flicker and they feel a cold presence. One day, they find strange symbols drawn on their bedroom wall, and they start to suspect that there is some sort of malevolent spirit haunting the house, driving them to the brink of madness as they struggle to survive the rest of their time in the house.
The creepy Colonel Sanders statue. It's always there, looking a bit too serious. In a horror story, it could come to life and start chasing people around the store with a menacing look on its face.
The color itself could be spooky. The bright red cranberry color in Sprite Cranberry can seem like blood in a horror context. For example, if the drink starts to drip and leave red marks everywhere, it gives a very creepy feeling.
Perhaps the underwear starts to tighten on its own, squeezing the wearer uncomfortably. When it's the 'days of the week' underwear, it could be that the tightening gets worse as the days progress. Like on Friday, it tightens so much that the person can hardly breathe, creating a sense of dread and horror.
A spooky big toe campfire story could be this. A girl was camping alone in the forest. One night by the campfire, she saw a strange shadow moving towards her. As it got closer, she noticed it was a figure with a really long big toe that dragged on the ground. The figure hissed at her and then disappeared. Later that night, she heard scratching noises near her tent, and she was sure it was that big - toed thing. She huddled in her sleeping bag, too scared to move until morning.
A woman received a takeaway of tandoori chicken. When she opened the box, the chicken was covered in a strange green slime. She thought it might be some new sauce but when she touched it, it was cold and gooey like something out of a swamp. She immediately threw it away, feeling a sense of dread that she might have been poisoned if she had eaten it.
The Michelin Man's appearance itself can be spooky. His large, white, inflated body and big smile can seem really eerie in a horror context, like a distorted version of something that was once friendly.
One spooky event could be when a child is playing with sparklers on Diwali night. As the sparkler fizzles out, the child looks up and sees a ghostly apparition of an old woman standing right in front of them. The old woman is dressed in traditional Diwali clothes, but her expression is menacing. She reaches out a bony hand towards the child, and the child is too terrified to move.
Ghosts. For example, a ghost of a past resident who died a tragic death in the place where Esmeralda is could be haunting her. It could appear as a translucent figure or make strange noises like moaning.
Maybe Dhoni is walking alone in an abandoned cricket stadium at night. The echoes of his own footsteps seem louder and more menacing. Suddenly, he hears the sound of a cricket ball being hit hard, but there's no one else around. The sound gets closer and closer until he feels a cold breeze pass by him, as if an invisible player has just run past him.