I'm not talking the plastic clip the guy has a picture of, I'm talking the rectangular one that snaps into metal arm, that the pictured clip snaps to the blade

 

That plastic piece in the end of the wiper arm that holds the wiper blade can be ordered from the dealer with the following part number:

Driver side (with the airfoil attached) is 8E1-998-430 listed for $26
Passenger side is 8E0-998-430 for $11

The clip inside those pieces can be replaced independently as well. The part number is 8E0-955-247 for $2

Hope this helps.

 

My son snapped the plastic clip attached to the blade that the other plastic clip attaches to. This is a silly system. I read on this forum about Rain X Latitudes being able to be used with a plastic zap strap so I tried it. I was able to get it to fit but the curved blade left a big streak down the middle. Very frustrating. I then realized that ANY wipers with the three holes would fit the same way. They fit right inside the end of the wiper arm. I headed to Napa and bought their cheap 8.99 straight blade wipers, zap strapped them in and boom... no more streaks, no stupid plastic clips. I bought 21" for drivers side and 20" for passenger side.

My attempt at instructions:
1. take the plastic clip completely off of the wiper arm. You should be left with the metal arm with a hole at the end.
2. Buy flat wiper with the three holes in the middle.
3. line up the holes and put the zap strap through and tighten.
4. cut zap strap.
Time required 5 minutes. Difficulty 1/10.

Honestly a child can do this and I am so happy with the result. You can buy a black bolt instead of the zap strap but zap strap works great from what I've read.

Hope this helps somebody