Every day, the sun bathes the planet in energy -- free of charge -- yet few systems can take advantage of that source for both heating and cooling. Now, researchers are making progress on a thin-film technology that adheres both solar cells and heat pumps onto surfaces, ultimately turning walls, win... Read more
Stay hydrated in style with this handmade water bottle made from natural clay. With a capacity of 1L, it's perfect for carrying your favorite beverages on-the-go. The unique earthen color and random design make it a great addition to your kitchen storage and organization collection.
Staying hydrated has never been so refreshing. The HOST FREEZE Bottle is designed to keep any beverage deliciously chilled for 2 hours so you can enjoy ice cold drinks wherever you go. The double walled plastic tumbler includes built-in active cooling gel that chills room temperature drinks down qui... Read more
A self-cooling solar-powered water bottle would work amazingly.
I found this natural self-cooling clay water bottle on eBay.
Like this?
https://chillwithhost.com/products/10012?