   | The Square Root of Negative One is My Imaginary FriendDesigned by lucky760 
This design has been printed!  Workshopped 2 years 3 months ago | Final Tally 69.4% 9 votes |
About this design by its creator…
“This is a simple joke for those whose funny bone contains some mathematical marrow. Not sure how well it will go over, but here it is, submitted for your approval.”
— lucky760
Ryjkyj -> http://en.wikipedia.org/wiki/Imaginary_number