Do you have to buy an espresso machine to get a steam wand?

I don't drink coffee at all, so I have no use for a full espresso machine. I drink Chai Tea Latte and Steamers from Starbucks regularly. In trying to make them at home, I find that not having steamed milk makes a big difference in the drink. I can't seem to find a steam wand machine though. They are always in conjunction with a espresso machine. Just wondering if there are any other options I am missing, or if I am going to have to bite the bullet and get one made for espresso.