Here are some examples of mechanical toys!
Flower Window
The flowers are spaced out around the window frame and work like interlocking gear wheels. As the crank is turned each flower makes the one next to it turn (rotary motion). The flowers all turn at the same speed because they each have the same number of petals (gear teeth).
Turn the crank and the monkey's body move in a circle (rotary motion). 
The Gardener
The gardener bends forward to water the flower when the input crank is turned (rotary motion). The movement of the flower is controlled by a cam which is also connected to the crank through a shaft.
Footballer
Turn the crank (rotary motion) and the footballer kicks the ball (oscillating motion).
Turn the crank and a circular cam makes the dog’s jaw go up and down.
This model has three bees attached to a platform that rotates freely round a central pole. As the bees are rotated, the platform is forced to rise as the red strings twist and tighten themselves around the pole.
The bees are then released and the weight of the platform then makes the strings unwind, lowering the platform and starting the process all over again.