An Arduino can be used to put things in motion, here you'll find stepper motors and servos
All products shown are not being sold by Bas on Tech.Bas on Tech earns a small fee for each sale made via these links.
Motor driver shield L293D $ 3.63
1x SG90 Tower Pro Servo $ 2.47
6x SG90 Tower Pro Servo $ 9.72
Stepper motor with ULN2003 driver $ 2.64
Stepper motor with ULN2003 driver $ 4.46
5x Mini Motor 3V $ 2.95
75x gear kit $ 4.25
75x pully/gear kit $ 4.79
78x gear / wheels kit $ 4.36
80x gear kit $ 8.37
85x gear kit $ 4.90