A little while back, I told you guys about a nifty coffee mug that could automatically change states from “on” to “off” when a hot beverage hit its surface…

This simple, clever mug automatically indicates its current state of mind when you pour a hot beverage into it.

In its dormant state, the mug offers a black “OFF” display, but once your hot coffee or tea hits the inside, it gradually transforms to read “ON”…