DC Motor in Micro Servo Body : ID 2941 : $3.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: ZOSKAY 35kg high Torque Coreless Motor servo Metal Gear Digital and Stainless Steel Gear servo arduino servo for Robotic DIY,RC car (Control Angle 180°) : Toys & Games
Sensors Modules Servo Motor | Sensors Modules
FeeTech FS90 Micro Servo with Accessories | Elektor
Pololu - Power HD Standard Servo 3001HB
Amazon.com: SunFounder 20KG Servo Motor Waterproof High Torque Servo, SF3218MG Metal Gear Digital Servo, Aluminium Case, Control Angle 270° for RC Robot Cars : Toys & Games