Wishiot GY-521 MPU-6050 MPU6050 3 Axis Accelerometer Gyroscope Sensor Module 16Bit AD Converter Data Output IIC I2C 3-5V for Arduino: Amazon.com: Industrial & Scientific
Amazon.com: Battling Tops Burst Super King B-176 01 Hollow Deathscyther 12Axe High Accel' 4A Gyro Toys with Bey Burst Battle Sparking Launcher LR Right/Left Turning and Grip Spin Top Booster Starter Toy :