Magic Color Changing Porcelain Mug. When you put the hot water into the mug, the "color of the battery" will change gradually.. Before - r After. "Magic" you uneducated . It's because they're thermosensitive

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User avatar #2 - crazymero ONLINE (06/25/2013) [-]
"Magic" you uneducated **** . It's because they're thermosensitive
#5 - justleavefagmin (06/26/2013) [-]
I have a Star Trek Next Generation one.
User avatar #4 - slootyslooot (06/26/2013) [-]
There's a TARDIS one too
User avatar #3 - zenbass (06/26/2013) [-]
It's backwards, though. You get more energy from coffee.
User avatar #1 - Nightelfbane (06/25/2013) [-]
my dad has one of those with a pacman maze
add hot water and all the dots come up
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