I broke one a few years back, scraping ice and snow off my car. I don't know if your 2010 is the same as my 2005, but it was easy to fix. I got a replacement one from a junk yard off a wrecked Impreza. I would have just bought one from the dealer but I went to the junk yard to help my friend pull some parts for his jeep build and I spotted an Impreza so I picked the nozzle while we were there.
They pop right out no tools necessary.