Where to buy a new hazard switch?

[Skunksmash]

I tried to use my hazard switch the other day on my 87 silverado. It crumbled away in my hand. Only the screw sticking out of the steering column still remains. But hey using the screw, the hazards still function.

But I want to install a new switch. And I want it to be new, not used. The way the used one just crumbled into a bunch of tiny pieces like that, I can tell that I want new. So where can I buy a brand new hazard button/switch, for my 1987 Silverado truck?

I looked on ebay and amazon and found nothing, unfortunately. Any idea where? Perhaps ACdelco brand, or dorman or HELP! or Needa? A link would be greatly appreciated!