The dangers of unintentional plagiarism

So I was thinking the other day "Wouldn't it be a great idea to mix Boba Fett and Bulbasaur? Creating Bobasaur, if you will.

I mean, they're kind of the same colour, and they both have something on their back and everything. So I did a rough of just that:

"Brilliant," I thought. "A totally original idea that my generation should love on every level. Maybe this could be a T-Shirt or something, who knows."

So I was all geared up to do a properly inked version when I stumbled across this:

Bulba Fett

I must stress that I found this after I drew the first picture. I stress this because as you can see it is ridiculously close to my picture in many ways.
I mean, Bobasaur and Bulba Fett? Seriously?

This just goes to show how easy it is for two people to independently arrive at a very obscure idea, and have it turn out identical - and why artistic plagiarism should be enforced carefully.