Modulator

Unfortunately, It Appears Not To Be A Joke

But, really, it should be:

Testicular Implantation For Pets
(US Patent #58-68140)

#1 Dinosaur says it better than I:

Ho. Ly. Shit! Is there no limit to what you can sell to anthropomorphizing idiots?

Now if this thing is nothing but a fantastic farce, my hat's off to you; I'm not worthy. But I'm afraid -- really afraid -- that it's on the level. Words escape me.

Indirectly via Tundra Medicine Dreams.