I didn't get them from anywhere, but I did actually consider putting a pair of eyeballs (Phoenecian, originally, I think) on my Jimmy Skiff, the Metaphor.  Decided against, though.  Too gimmicky.  I figure, the name and maybe a bright red pennant, either CLC's or one I can put together, will be just the right amount of non-serious.

But if I were to do it.  I would decide what I wanted the things to look like.  I would then choose some key points---inner and outer corners of the eyes certainly, maybe some additional points.  Then I would make some kind of jig to mark the points symmetrically on either side of the prow.  Maybe a piece of cardboard with a wedge cut out at the same angle as the prow, and inches marked on each side of the wedge.  This way I could mark the key points on corresponding places on the two sides.  And then paint freehand between key points.  Plan on n coats of paint, for some n that will cover the lower color with the upper, and as I am informed it is the idiom on this planet, the name of your father's brother is Robert.

If I were to do it I think I would find someone who could produce the artwork on a computer then take the file to a sign maker and have them cut out vinyl reproductions. That way if I didn't like the way they looked I could easily remove them.