The wind up toy is a utility item that makes noise, distracting anyone nearby. It appears as a wind-up mouse with wheels and a black robber's mask. When you place down one, it will rush forward in a straight line and bounce off every obstacle it encounters. It, however, will not prevent guards from discovering Bob so be careful not to accidently run into it while sneaking around because the guards will be in close pursuit.
It costs 30 coins to buy a set of 2.