Don't miss our server-plugin:
Head Database v4!
Soldier with Gas Mask
Changes: No changes detected since the submission 2.1 years ago.
Setblock: (might not work in the first place, pick up the head and place it again - fixed in 1.13.1)
Minecraft 1.8 - 1.12Give-Code: (skins are shown after the first placement of the head)