Trimmable carved pumpkins, new trim and copper golem improve

The pumpkins would work like trimming any other armor piece, but you would be able to place it on the floor (like regular blocks) so could be used like a new decoration block. It would also be used to create snow colems, iron golems and copper golems, giving a new way to customizing these mobs. The snow golem will have the carved pumpkin on his head (as usual), and you could get it out with shears; the iron golem would have Marks on his chest, what can help identifying your iron golems from others peoples iron golems; and the copper golem would add patterns on his head (also changing the color of his antenna), and also helping personalizing the statues. The new trim Will be obtained in villages because of the new way of customizing iron golems. 1/50 of the iron golems will appear with the trim, and when you heal it (with iron ingots when damaged) or it dies (not by player fault) it will have a 1/20 chance to drop the trim. It would have an villager themed pattern (for example, an emerald in the player chest). At last, the copper golem (customized with a trim) Will only pick items from the copper chest he was created with or a customized copper chest (with the same trim and color). This last feature could help specialy in redstone, because it would be detected with a comparator. And thats it, sorry for My Bad English (I talk spanish) and thanks for reading my idea. (Any question in comments)