How can one make a pattern head for a laser pointer?

So I'd like to make some custom designs for a laser pointer, like some simple text and so on. I have no idea how! Even if there is some company that would do this for me I would be into that idea.

aiui, they use diffraction patterns that are basically made holographically, so pretty hard to roll your own.
Kiteman5 years ago
You could try painting a small piece of plastic, and then using a very sharp pin to etch a pattern into it?