Notorious RBG - Color Changing Mug

Notorious RBG Color Changing Mug - Reveals Secret Message w/ Hot Water.

We heart Ruth Bader Ginsberg.

The mug starts out a glossy black color. When hot liquid is added the brilliant color message appears and the mug turns white! Surprise your friend with a secret message.

To see it in action click here! https://youtu.be/3vuh5EEQ3eI

Available in 11oz.