Is there such thing as clear plastic tapping screws?

I am in need of a tapping screw like this:

https://img.skitch.com/20120303-r1xysrsqtwq987k9ipih4nek7d.jpg

That is plastic and clear like this:

https://img.skitch.com/20120303-rjkt13u26g8hj6bq3gb6pifbh4.jpg

I am very flexible with the length but the important thing is that they are tapping screws and not machine screws (The difference is that tapping screws have a sharp tip so you can drill into a wall)

Do these even exist? Has anyone ever seen them? I have searched online with no luck.

If I can’t find some that are perfectly clear, I can (very reluctantly) settle for white or off-white plastic like this:

https://img.skitch.com/20120303-eyfdq1f5rs7uum7375yy7qny7j.jpg

But again, it would HAVE to be a tapping screw.