Small Windup Toy about 13" tall covered in carved runes with visible gears and mechanical inner workings. Once gear is wound 5 time as an action the bot comes to life and grows to a full sized iron golem and has all the abilities of one. this can be done 3 times per long rest and last for five rounds of combat. 

Notes: Once an Artificer touches the "toy" he becomes consumed with it and treats it as his own child talking to it and playing with it as if it were a living offspring. He also spends all his free time trying to improve the toy and make it more lifelike.