Where to find the best purple or blue laser's with the kaleidoscope diffraction tips

Hi guys, new to the forums, I've only so far have a single 100mw red laser, and quite enjoy it. Please excuse my n00bness for now. I've just discovered diffraction grating, and I am in search of a good (but reasonably priced) blue or purple laser with defraction lenses which you rotate for a kaleidoscope effect. There are simply so many places to buy lasers, and yet when I search with any of these terms, it seems they are hard to find.

Any help would be very much appreciated

If i am right, Jayrob sell kaleidoscope tip over here.

Awesome!! Thanks so much. Am I the only one who finds these kaleidoscopic defrraction gratings awesome. I Dont understand why they are so rare.

Do you know if all defraction gratings work the same way? Like if you rotate them it creates new patterns? Or perhaps that's from layering. I have also ordered a ten pack of the lenses alone

I think most people here dont buy those super cheap china lasers, that have those diffraction caps by default.

If someone uses diffraction gratings, its probably mostly the more "professional" ones that you can buy seperately which are not integrated in the higher quality/power lasers.
But it shouldnt be to much of a problem finding them.

And if you want the cheap laserpens with those diffraction caps, you can still use sites like gearbest , dont expect high quality for those prices, though.