Not really a TB specific part, helps when charging USB

[streetstrip01]

$25

Newer Technology Power2U Dual-socket wall outlet with two integrated USB ports for powering and charging USB devices

 

[mrjam3s]

Nice...thanks for sharing!

 

[yodatom10]

ive gota get me one of these

 

[SamOliver]

lol, that's really cool, but if i was at home i would have my wall charger for all my electronics anyway