Polar alignment reticule or eyepiece

[krobbo]

Hi everyone not been on for a while! 

I'm looking for a polar alignment reticule or eyepiece that I can use on my 8" SCT?

Looking at images of the polar scopes on the Web they are engraved with constellations and a bubble to locate polaris for alignment. Anything like this over the counter for any scope? Done all the searching on the Web but can only find bespoke polar scopes for dedicated mounts? 

Cheers again! 

[knobby]

It needs to be on the mount, not the scope, the mount has to be polar aligned hence the polar scope being made for the mount.

Also the polar scope has to be accurately centred on the mount for it to work properly.

What mount are you using ?

[krobbo]

Hi knobby. It's a celestron c8 on a fork mount with a wedge. I can only use the finder so that's why I was thinking a reticule type filter on an eyepiece on the scope itself?