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with hot liquid, cup says "Mischief Managed"
Mischief Managed Transforming Mug
La amo aún más!!
"It changes to mischief managed when you fill it with something hot." my response: "No it does not! really?!" *click repin immediately*
heat-changing mug! I have to have this Harry Potter mug!!!
Harry Potter coffee mug
Mischief Managed - NEED THIS
Hahaha! This is awesome
$19 Thermal battery mug...it's completely black until you pour hot liquid in! The battery bars go up and down to match the level of the liquid!
♥ nerd mugs