scarcity

Now that I sometimes am my own webmaster I can see that some "guests" fail to find my favicon. This is the icon that appears in the address field of your browser. I do have one, but it has a different name.
Such an icon must be 16x16 pixels in size. But then, in the light of 6 billion world citizens, can enough different favicons exist? Yes. And can I find a way to make them pay? Yes.
The icon is 16x16 = 256 pixels in size. For each pixel you can choose one of 256x256x256 colors.
Hence 256x256x256 to the power of 16x16 and that is only 3.37e+1849 different icons can be made. (a 3 followed by 1849 zeroes)
Shall I start an internet based registration service? Or, if one exists already, there register all zillions of icons? I'm willing to sell my registered icons at a price of 1 US dollar a piece. Some, the ones that are close to black or are close to white, can go for 10 dollar cents.