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"In an effort to sensitize kids to rising energy costs and educate them on the benefits of energy savings, designer Mathieu Zastawny and his team used the iconic piggy bank as a visual reference, and created the electronic Power-Hog power consumption metering piggy bank.  The tail of the device is connected to the mains and the appliance which needs to be powered is connected into the snout. Insert a coin and the device lets you use electricity for 30 minutes. The Power-Hog is designed to capture the interest of both parents and children alike through its association of power consumption with saving.  Kids can&amp;#8217;t watch TV if they don&amp;#8217;t have money to feed the piggy bank, so this is the perfect way to force them into playing outside for a change."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.trendhunter.com/trends/energy-use-awareness-devices-power-hog-piggybank-sensitizes-kids-to-electri>