All you have to do is add liquid to the B&M wizard-themed items for the trick to work CALLING all Harry Potter fans! You can now get a magical glass and mug that change colour when you add liquid… and ...

Have you ever seen a mug that changes colour once a hot drink is poured in? Or a ring that is said to change colour with your mood? Both of these items use thermochromic materials. These substances ...

Color changing cups and mugs are all the rage lately. Both Costco and Starbucks have sold their own versions of this trendy item this year. Now, Disney is jumping on the bandwagon. The Disney Ink & ...