Metal Shaft Rotary Switches

[Guava]

I'm building a Voodoo Vibe and have single deck 4p3t and 2p6t rotary switches—the black plastic kind with the plastic shaft.  I'm not crazy about the plastic shaft—worried  if I ever snap it off the repair would be a nightmare. 

Does anybody know of a source for metal shaft rotaries?  I can find double deck metal shaft versions, but cant find single deck anywhere.