/summon Skeleton ~ ~1 ~ {CustomName:"Dinnerbone",Riding:{id:"Skeleton",CustomName:"Bugs Bunny",Invulnerable:1,Attributes:[{Name:generic.followRange,Base:1.0},{Name:generic.attackDamage,Base:100}],Equipment:[{id:391},{},{},{},{Damage:3,id:397,tag:{SkullOwner:"rabbit2077"}}]},Equipment:[{},{},{},{},{Damage:3,id:397,tag:{SkullOwner:"slenderman213"}}],Invulnerable:1}