I know you're a first time poster but like everyone else has been yelled at for it. The Nissam Forums has a "search" function. Make good friends with it as most things have been discussed until they are dead like the horse and are being flogged continually. Now to the topic at hand
You'll find a ton of topics on debadging just by doing a search, I won't post any of the info though since its already all over.
Rubbing Compound and polishing compound are found at many stores that I know of (Wal*Mart, Advance Auto Parts (aka Checker/Krager) Autozone, Pep Boyz, Robbins (if you're in New England), and many more). Its a fairly commonly used product that you can find many places you just need to look.
I personally don't like people who debadge cars. I'm lower middle class but still believe that if you're that ashamed of your car (like most VW owners) get a different one

but that's my 2C
Good luck with it and Happy New Year