Tony, You're in luck!  Fortunately, both new and original rollers
(cobs) are readily available.  New rollers (cobs) are being produced
by Charlie Moore, and there are now an amazing 260+ titles available.
He also offers about 60+ recuts of popular original tunes.

You can always see a current list on my web site store and the tunes
may be heard by listening to the recordings there:

  http://www.rollerorgans.com/store/ 

I also carry many original rollers (cobs), currently having a stock of
80+ titles.  You may likewise purchase them through the online store.
Also available are books, repro and original parts, and whatever else
I can find for those who collect Roller Organs and Cobs.  Enjoy!

Todd Augsburger - Roller Organs
todd@rollerorgans.com
http://www.rollerorgans.com/