Where to get rubber feet?

Hello all..

Where can i find WHITE rubber feet for my Asus Laptop A456U? somehow my rubber feet is missing, i don't how and when.. it's just missing. i already claim my Asus waranty but asus guy said it was happen cause of my negligence. He offer me BLACK rubber feet, and i have to pay for it. It's weird, i never take off the rubber feet from my laptop, but somehow asus guy said it was my negligence. So i need other source who sell white rubber feet for my Asus Laptop A456U.

Thank you