Geek Tshirt Series by CricketDiane – Once a pi fiend, always a pi fiend.
http://www.zazzle.com/once_a_pi_fiend_always_a_pi_fiend_geek_tshirt-235044436473775674
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pi r squared the wagons geek gift nerd tshirt by cricketdiane 2013
http://www.zazzle.com/pi_r_squared_the_wagons_geek_gift_nerd_tshirt-235010107549465335
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pi r squared tshirts for geeks by cricketdiane
http://www.zazzle.com/pi_r_squared_the_wagons_geek_gift_nerd_tshirt-235492187654224024
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