Golems should have upgrades

I suggest that all the golem variants are given a possible upgarde. This would work like how healing iron golems works. You would right click a mob with the right block and get an upgraded variant.

Snow golem + dispenser

The snow golem would get a dispenser block on it's side where one of it's arms used to be. It would still shoot snowballs but slightly faster, you could right click it with arrows to give it arrows to shoot but this would go only up to 64.

Iron golem + Blast furnace

The iron golem would get the Furnace golem from minecrft earth texture and would now also deal fire damage, if you feed it coal it would get a temporary speed boost.

Copper golem + piston

The copper golem would get little pistons on it's arms and legs, it would use them to have a longer reach and be able to get to high up chests.