Its basically like a Hurst Shifter. As I understand it, they're quite expensive for the original VW option, BUT you could make one using a shifter stick from Hurst.
http://www.hurst-shifters.com/shifter-sticks.asp
It would be incredibly easy to make using a stock assembly and modifying it. All the cuts and welds (or bolts) would be covered by an aftermarket shift boot. You could put whatever you want for the shiftknob.