Where did you get yours. Ive been to O'Reilly's and Autozone and neither had any. I would hate to have to order just for a couple of feet of the stuff...
Wow, that's lame. All parts stores should have some.
Worst case: I think fish aquariums use 1/8 line for the breather hose.
If so, wallymart should have a roll of 1/8 hose for a buck or two (I bought a roll when I made my carb synchronizers - I needed clear hose to see the fluid move).
I'd just find a parts store guy who isnt wasted and ask him for the hose.
(Edit, I didnt mean it to sound like that. "Hey man, I need to check out your hose." ).