VE: Development process

I've finally settled on the idea of arrays of rings to form pipes to travel along. The images below show a few lengths of 'pipe' arrange in a way that will allow the user to make decision on the path taken, but they are still all straight. I've search the net to find ways of bending the 'pipes' so it curves well (unlike the modifiers i've tried). Idealy i would like to make a sline and mount the rings along it, to make a pleasant curve. But the little bugger won't let me. Any ideas, please let me know.

Next step is to add more rings, add some shapes to create sounds and lighting effects(???) and find out how to pleasantly bend the rings.






The different coloured rings play a different sound when traveled through.