so you wanna know how to get peoples heads in minecraft you've came to the right place so what you do is
do this command can be used with command block type in give [your username] minecraft:skull 3 3 {skullowner:DanTdm}
press enter you get a persons head you can use diffrent names like say you love a minecraft youtuber and you wanna get
their head just type their username bam1 you got some ones head