TomTop offers the Techboy Remote Control Quadcopter for $23.99. Coupon code "TT802" drops it to $19.99. With free shipping, that's the lowest price we could find by $2. It features 360° flip function and LED lights.
Note: The countdown timer on the product page does not reflect an actual expiration time and resets daily. Also, this item ships from China and may take two to six weeks to arrive.