Yes. They are about $5. ea. including arbors at Lowes or Home Depot. You'll need an air compressor and a die grinder to spin the wheels. You'll also need various grades of compound, sand paper, a dust mask, safety glasses and lot of time and patience. It's a tiresome, tedious, filthy job. Most people quit half way through the process and just repaint because it's a real PITA to do.
I did my '93 Cobra upper last winter and it took me about 40 hours. Figuring my time, it would have been cheaper to buy a new chromed intake instead. I would not consider doing this again at any price! Have fun!
I would recomend an electric drill that turns about 2,500- 3,000 if it were me.
But I do have this Baldor buffer that turns 3,600rpm for sale if your interested that only has about 40-45 hrs on it.
Look about half way down the page http://www.netsnapshot.com/pcw/buildalbum-cgi?ACCOUNT=1924&KEY=2