Adorama.com offers the Swann Air Duel Gyro-Balanced Remote Control Helicopter 2-Pack, model no. SWTOY-ARDUEL2-CO, for $39.99. This $20 mail-in rebate cuts it to $19.99. With free shipping, that's $10 per helicopter and the lowest total price we could find by $29. These gyroscope-balanced helicopters include two remote controls, a landing pad game, and spare parts. Rebate expires July 15.

BUY NOW: $20 After Rebate plus free shipping at Adorama