Gillespie,
You should befriend a jeweler in your area who can teach you how to solder silver. Then you could make bands out of sterling sheet and to any width you want. It really isn't that hard and doesn't require a major investment. The apprenticeship might only cost you a few pints at the pub too. You can do it with a handful of tools; ring mandrel, hammer, forceps and wire (for holding over flame), alcohol lamp, snips for cutting sheet and of course silver, solder and flux. You could probably find all the tools for about $20.