Player heads are obtained when a player is killed by a charged creeper’s explosion, causing them to drop their head. In Creative mode or with commands, they can also be manually given to players with custom textures.
Player heads are primarily used for decoration and customization, allowing players to display their own or others’ skins as trophies or decorations. They can also be used in redstone contraptions, as placing a player head on a note block changes the sound it produces.