Stranger Things Color Changing Aluminum Tumbler - Demon Hellfire Style with Lid and Straw

Inspired by the demon and hellfire-themed designs from Stranger Things, this tumbler features artwork of a skull demon surrounded by flames, bats, and mystical symbols. Thanks to thermochromic technology, the design shifts and reveals as the temperature drops — add a cold drink and watch the eerie patterns come alive. Great for ice-cold sodas, iced coffee, energy drinks, or any chilled beverage.

Crafted from food-grade aluminum, it's lightweight and durable — no fragile ceramic. It keeps drinks colder longer and holds up to everyday use.

Choose your setup:

• Cup only – sleek and simple for on-the-go sipping.

• Full set with lid and straw – spill-resistant and ideal for travel or long sessions at home.

Available in Demon Style and Hellfire Style color options.

Key Features:

• Thermochromic cold-reactive color-changing design

• Food-grade aluminum construction for safety & durability

• Demon/Hellfire-themed artwork inspired by Stranger Things

• Options: Cup only or complete set with lid + straw

Frequently Asked Questions

How does the color-changing effect work?

Thermochromic technology reacts to cold temperatures — as you pour in a chilled drink, the demon/hellfire artwork shifts and reveals hidden details.

What's the difference between cup only and the full set?

Cup only gives you the tumbler alone for simple sipping. The full set adds a matching lid and straw for spill-resistant use during travel or long sessions.

Is this dishwasher safe?

Hand washing is recommended to preserve the thermochromic coating and color-changing effect over time.

Is this an officially licensed product?

This is a fan-inspired design drawing on the show's demon and hellfire aesthetic rather than an officially licensed collector's item.