Kmart is offering buy-one-get-one free on many of the toys they offer online. They also have RC cars for buy-one-get-one-half-off and many other toys for 40% off. They still have shipping options to make sure they get to your door by Christmas as well. AND if you sign up for ebates, you get 6% of your purchase back in cash back. You also get a 'bonus' free gift card for joining ebates. You can't loose!
Click here to join ebates. After you have done that, look up Kmart and follow the link to their site.