A stone block as a helmet for giant zombies

[3clipseFX]

Title says it all, I’m tryna test something out. Just wondering if it’s possible to put blocks as a helmet on giant zombies’ heads.

 

[meagfire456]

Only with plugins

 

[3clipseFX]

Only with plugins

How exactly would that be done? I'm trying to enlarge the block. So for example, on a zombie the block on its head would be small but im trying to enlarge it so i thought it would be possible to do it by putting a block on the giant's head