Fountains

Step 1: Throw 16 Redstone blocks, a dispenser, and a water bucket in a pile to get a fountain placer.

Step 2: Do not place it near your house.

Step 3: After it is placed: Decorate!

Step 4: Enjoy your laggy but cool fountain.

The command: (Not so long this time)

/summon FallingSand ~ ~1 ~ {Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~ ~1 ~ ~-24 ~1 redstone_block},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~ ~2 ~ ~ ~-25 ~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 log 13}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard objectives add kill dummy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard objectives add F dummy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard objectives add cr dummy},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-15 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Water,score_F_min=1] ~ ~ ~ particle blockcrack_8 ~ ~.8 ~ 0 0 0 0 25},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain] ~ ~ ~ playsound ambient.weather.rain @a ~ ~ ~ .1 1 .1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players set @e[type=Item] cr 1 {Item:{id:"minecraft:dispenser"}}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-14 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain] ~ ~ ~ detect ~ ~3 ~ air 0 kill @e[c=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players set @e[type=ArmorStand,name=Fountain,score_F_min=17] F 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players set @e[type=Item] cr 3 {Item:{id:"minecraft:redstone_block",Count:16b}}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-13 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:kill @e[type=ArmorStand,name=Fountain,score_kill_min=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=4,score_F=4] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[0.2,1.0,0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Item,score_cr_min=1,score_cr=1] ~ ~ ~ execute @e[type=Item,score_cr=2,score_cr_min=2,r=1] ~ ~ ~ execute @e[type=Item,score_cr_min=3,score_cr=3,r=1] ~ ~ ~ kill @e[type=Item,score_cr_min=1,r=3]},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-12 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=8,score_F=8] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[-0.2,1.0,0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Endermite] ~ ~ ~ fill ~2 ~-1 ~2 ~-2 ~-1 ~-2 water 0},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-11 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=12,score_F=12] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[-0.2,1.0,-0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Endermite] ~ ~ ~ setblock ~ ~3 ~ water 0},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-10 ~-1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=16,score_F=16] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[0.2,1.0,-0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:kill @e[type=Endermite,name=Fountain]},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~4 ~-10 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:kill @e[type=ArmorStand,name=Water,score_F_min=1]},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players add @e[type=ArmorStand,name=Fountain] F 1},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players set @e[type=Item] cr 2 {Item:{id:"minecraft:water_bucket"}}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~5 ~-9 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain] ~ ~ ~ detect ~ ~-.01 ~ water 0 scoreboard players set @e[c=1] kill 0},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=2,score_F=2] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[0.2,1.0,0.0],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Item,score_cr_min=1,score_cr=1] ~ ~ ~ execute @e[type=Item,score_cr=2,score_cr_min=2,r=1] ~ ~ ~ execute @e[type=Item,score_cr_min=3,score_cr=3,r=1] ~ ~ ~ give @p spawn_egg 1 67 {ench:[],display:{Name:Fountain}}},Time:1,}}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~6 ~-8 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=6,score_F=6] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[0.0,1.0,0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Endermite] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Fountain,NoGravity:1,Marker:1,Invisible:1}},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~7 ~-7 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=10,score_F=10] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[-0.2,1.0,0.0],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Endermite] ~ ~ ~ fill ~-1 ~ ~-1 ~1 ~2 ~1 air},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~8 ~-6 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain,score_F_min=14,score_F=14] ~ ~ ~ summon ArmorStand ~ ~ ~ {CustomName:Water,Equipment:[{},{},{},{},{id:"lapis_block"}],Small:1,Motion:[0.0,1.0,-0.2],Invisible:1,Marker:1}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=Endermite] ~ ~ ~ setblock ~ ~2 ~ water 1},Time:1,}}}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:summon FallingSand ~9 ~-5 ~1 {Block:log,Data:13,Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/scoreboard players set @e[type=ArmorStand,name=Water] F 1 {OnGround:1b}},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:/execute @e[type=ArmorStand,name=Fountain] ~ ~ ~ particle bubble ~ ~ ~ 1 0 1 0 10},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 iron_bars 0 replace log 13},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~3 ~ ~-1 ~9 ~5 ~1 air 0 replace log 13},Time:1,Riding:{id:FallingSand,Block:command_block,TileEntityData:{Command:fill ~2 ~ ~-2 ~10 ~4 ~2 log 13},Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}}