So after making the first Imaginary Friend, another graduate student (now graduated and teaching as an adjunct instructor) wanted a variation: instead of the square root of negative 1, he wanted e to the i pi (see the Wiki entry on Euler's identity).

So I now give you the Not-So-Imaginary Friend:

Done on 7-count plastic canvas with worsted weight yarn, it has a bit of polyfill in it to puff it out. The University's 'main' colors are blue and grey. This is about as long as the original Imaginary Friend, and about twice as high.