Everything below $299.9 » educational toys http://www.s2999.com Find the coolest things, all priced below $299.9 Tue, 20 Nov 2012 13:27:48 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Hydro Power Calculator http://www.s2999.com/hydro-power-calculator.html http://www.s2999.com/hydro-power-calculator.html#comments Fri, 06 Aug 2010 09:41:20 +0000 andra http://www.s2999.com/?p=2250 This environmentally friendly calculator is great for your kids! All you have to do is fill the fuel cells with plain water and you’re good to go. It operates just like a normal calculator, but it’ll teach the kids that there are alternative ways to science. It doesn’t get any more eco friendly and educational than this Hydro Power Calculator! :)

How much under $29.99?
A lot: $10.95 on Amazon.

Via Neatoshop.

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