Rail Golem

The Rail Golem can be spawned by first placing an iron block on a log, then a carved pumpkin, and finally redstone on top. He's shorter than the player, his body looks like and is the size of a Minecart, his legs are stubby and look like oak logs, his head is the same color as his body and is shaped like an iron golem head but wider, finally his arms are striped with oak and iron and are so long they almost touch the floor. Upon spawn it tries to walk to the nearest rails and stand next to them, if a minecart of any type goes by he'll lift up his arms to hold the minecart in place and will only let it go if either left click or powered by redstone.Not only that but if you left click with an item then the item will appear above his head and will only stop minecarts with that item, then hoppes under it can take the items.I find this Golem useful if you have a railroad system or if you need items sorted out in a farm.