I present the Goblin Shark!
http://en.wikipedia.org/wiki/Goblin_sharkThe theory: Leo Fender saw a Goblin shark sometime around 1949, it made a huge impact on him, and instruments changed from the influence.
Here's what the earliest Fender guitars looked like, before Leo Fender first saw the Goblin Shark (notice the headstock):
![Image](http://www.sweetwater.com/images/guitars/Tele60SHLtd/SH46/SH46-front-large.jpg)
The headstocks were then changed to resemble the tail, and then finally the body horns were added in tribute to the fins. Finally he ended up with this:
![Image](http://static.musiciansfriend.com/derivates/18/001/275/122/DV016_Jpg_Large_510007_web_comp.jpg)
...of course, I could be wrong!