I think your talking about the top radiator hose, the one that goes from the block to the top of the radiator?

Im sure you can find a replacment fairly easy from a place like autozone, NAPA, etc....Its just the rubber hose right? And if you patched the hole ou shouldnt need to be adding more...mayber theres another leak...

Its also weird that it would just randomly get a pin-prick hole like that.