gravestones in minecraft (mrgarretto.com/cmdcombiner)

/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~ ~1 ~ ~-22 ~1 redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~2 ~ ~ ~-23 ~1 air},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~3 ~-1 ~ {Block:command_block,Time:1,TileEntityData:{Command:fill ~ ~ ~-1 ~6 ~ ~1 quartz_block}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard objectives add _GR stat.deaths},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-15 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ entitydata @e[type=Item,rm=512,dx=0,dy=512,dz=0,score__GR_min=1] {Invulnerable:0b,PickupDelay:5s,Age:3600}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~-1 ~ detect ~ ~ ~ minecraft:air 0 setblock ~ ~ ~ minecraft:stone_slab 11 destroy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score__GR_min=1] ~ ~ ~ entitydata @r[type=Item,r=2,c=1] {CustomName:_GR}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-14 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ tp @e[type=Item,rm=512,dx=0,dy=512,dz=0] @e[type=ArmorStand,dx=0,dy=0,dz=0,name=_GR,c=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ tp @e[r=1,score__GR_min=1,type=Item] @e[type=ArmorStand,dx=0,dy=0,dz=0,name=_GR,c=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score__GR_min=1] ~ ~ ~ entitydata @e[type=Item,r=2,score__GR_min=1] {Motion:[0:0d,1:0d,2:0d],Invulnerable:1b,Fire:-1s,PickupDelay:20s,Age:-32768}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-13 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ tp @e[type=ArmorStand,rm=511,dx=0,dy=512,dz=0,name=_GR_boat] ~ -10 ~},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ tp @e[r=1,c=1,type=ArmorStand,name=_GR_boat] ~ ~512.8 ~},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players reset @a[score__GR_min=1] _GR},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-12 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ spreadplayers ~ ~ 0 1 false @e[type=ItemFrame,dx=0,dy=0,dz=0]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:scoreboard players set @e[type=Item,name=_GR] _GR 1 {OnGround:1b}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-11 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:kill @e[type=ItemFrame,name=_GR]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=Item,score__GR_min=1,name=_GR] ~ ~ ~ summon ItemFrame ~ ~ ~ {CustomName:_GR}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-10 ~-1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,name=_GR] ~ ~ ~ detect ~ ~ ~ minecraft:air 0 scoreboard players set @e[type=ArmorStand,dx=0,dy=0,dz=0,name=_GR] _GR 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ summon ArmorStand ~ ~ ~0.5 {NoGravity:1b,Invulnerable:1b,DisabledSlots:2039552,Invisible: 1b,Marker:1b,CustomName:_GR}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-10 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ scoreboard players reset @e[type=Item,rm=512,dx=0,dy=512,dz=0,score__GR_min=1] _GR},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ entitydata @e[type=Item,r=1,score__GR_min=1] {Motion:[0:0d,1:0d,2:0d]}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score__GR_min=1] ~ ~ ~ scoreboard players set @e[type=Item,r=2] _GR 1 {Age:0s}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-9 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ entitydata @e[type=ArmorStand,rm=511,dx=0,dy=512,dz=0,name=_GR_boat] {NoGravity:0b}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ summon Boat ~ ~-1.3 ~0.5 {Invulnerable:1b,CustomName:_GR_boat,Riding:{id:ArmorStand,NoGravity:1b,Invulnerable:1b,DisabledSlots:2039552,Invisible:1b,Marker:1b,CustomName:_GR_boat}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @a[score__GR_min=1] ~ ~ ~ scoreboard players reset @e[type=Item,r=2,name=_GR] _GR},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-8 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,score__GR_min=1,name=_GR] ~ ~ ~ kill @e[type=ArmorStand,r=0,name=_GR,c=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ tp @e[r=0,type=Item,score__GR_min=1] ~ ~512.2 ~},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=Item,name=_GR] ~ ~ ~ tp @e[type=Item,r=1,score__GR_min=1] @r[type=Item,r=1,name=_GR,c=1]},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-7 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ summon FireworksRocketEntity ~ ~-0.6 ~0.5 {LifeTime:40,FireworksItem:{id:minecraft:fireworks,Count:1b,tag:{Fireworks:{Flight:1b,Explosions:[0:{Type:4b,Trail:1b,Colors:[15790320,15790320,3887386,4312372,3887386,3887386]}]}},Damage:0s},Life:0}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:tp @e[type=Item,score__GR_min=1,name=_GR] ~ ~0.45 ~},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-6 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,name=_GR] ~ ~-1 ~ detect ~ ~ ~ minecraft:air 0 setblock ~ ~1 ~ minecraft:air 0 destroy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:entitydata @e[type=Item,score__GR_min=1,name=_GR] {CustomName:item}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-5 ~1 {Block:quartz_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ArmorStand,name=_GR] ~ ~ ~ detect ~ ~ ~ minecraft:piston_extension -1 scoreboard players set @e[type=ArmorStand,dx=0,dy=0,dz=0,name=_GR] _GR 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:execute @e[type=ItemFrame,name=_GR] ~ ~ ~ setblock ~ ~ ~ minecraft:cobblestone_wall 1 destroy},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:gamerule commandBlockOutput false},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~-4 ~ ~9 ~-2 ~ redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~3 ~-3 ~-1 command_block 0 replace {Command:fill ~ ~ ~1 ~6 ~2 ~1 stone 0 replace redstone_block}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:setblock ~3 ~-2 ~1 command_block 0 replace {Command:fill ~ ~ ~-1 ~6 ~2 ~-1 redstone_block 0 replace stone}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~-1 ~-2 ~10 ~1 ~2 stained_glass 0 replace quartz_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~ ~-1 ~9 ~5 ~1 air 0 replace quartz_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~ ~-2 ~10 ~4 ~2 quartz_block},Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}