Kmart has Star Wars Slippers in toddler and youth sizes for just $3.37 a pair when you buy 2. To get the deal, add two pairs to your cart(you can choose from Darth Vader, Yoda or Chewbacca.) They'll be buy one, get one 50% off. When you enter coupon code OFFERS10, you'll save another 10% off, making them $3.37 per pair.
You can pick your order up at your local store to skip shipping charges.