Rygar, I see that you have an Amiga 2000 in your avatar, if you still have this machine you can use Personal Paint to create stereograms in any size, using either the random dots or a pattern. You can download Personal Paint for free from Aminet, I guess you'll need your own way to transfer it to the Amiga though. http://aminet.net/pa...iz/cloan/PPaint
It's really easy to make your images. You just create it in grey-scale, with lighter greys being closer and darker ones being further away, then you run the filter and it will process the image into a 3D stereogram. You can switch on coordinates and make sure the area is only 160x102, and of course your A2000 already has the exact same 4,096 colour palette that the Lynx uses, and can be set to 16 colours onscreen to get the most accurate results.
I'm sorry I can't test out your ROM programs though, I'm blind in one eye and can't see in 3D at all, and I'm also deaf so can't test the audio one.