Here is a quote from Ecoterragaia, dead useful if you want to do it yourself:
"I painted the emblems with a base coat and clearcoat (many coats of clear to prevent chipping), and they look so good I was wondering why VW didn't do it from the factory. The front fascia of the car can be taken off by removing four screws (two under the hood and two in the lower grill area) and unclipping the two tabs under the hood, then lifting upward on the plastic (the part that holds the license plate and the upper honeycomb grill will come off). Once you have the fascia off and you look on the inside of the emblem (toward where the radiator would be), there are three tabs that hold the emblem to the grill, but only one needs to be pushed in. Push that one in and turn the entire emblem structure counterclockwise and it will pop out. I only painted the chrome part because I wanted it to stand out more, so I removed it by gently pushing on the several tabs that hold the chrome part to the emblem structure with a thin flat screwdriver. I sanded all of the chrome off with a sander and by hand, cleaned it, and applied about 6 coats of base coat bought from this company
http://www.automotivetouchup.com/index.htm
All you have to do is enter year, make, and model of your car and they have color matched base coats in spray cans. And it did match EXACTLY. Then I applied about 10 coats of clear after the base dried for an hour. I bought the clearcoat from a marine store down the road. If you follow the instructions on the cans on how to apply the multiple layers (about 10-15 minutes of flash drying between coats), youÂ're all set. The rear emblem is a little more difficult to remove because there is a good chance of breaking it if youÂ're not gentle. Push the top of the handle that pops the trunk (like youÂ're going to open it), and on the bottom of the handle you will see a seam where the chrome emblem is attached to the black background. Wedge a thin screwdriver in there enough that you can slip a credit card or something similar (donÂ't ruin a credit card !!) in the seam and gently and uniformly push it around until the emblem detaches. It is attached with a combination of double-sided tape and very tiny tabs (some will break, but thatÂ's okay). The center part where the bottom of the V and the top-middle of the W meet is a breaking point (theyÂ're not attached to each other), so make sure you donÂ't pull up on the emblem until theyÂ're both detached. Use the same process to paint it as the front emblem, and when you go to reattach it, remove the broken tabs, but donÂ't touch the ones that are still intact. I dabbed a TINY bit of black silicone gasket-maker adhesive on each tab that was still intact and popped the emblem back into place. Use very little of the adhesive because you donÂ't want it to squeeze out. The whole process took me one Sunday, and I was able to do stuff in between coats of paint. I have some very good high resolution pictures if you want them, but they wonÂ't upload to this forum for some reason. Oh, and absolutely no chips in the emblem in 1500 miles (all highway). Many coats of clear coat will prevent chipping."
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