/give @p minecraft:leather_PIECEOFARMOUR 1 0 {display:{color:ID}}

BrightRED:
16711680

BrightGreen:
130816

BrightBlue:
511

Yellow:
100000000
DarkBlue:
100

DarkGreen:
10000

Teal:
100000

EmeraldGreen:
1000000

White:
10000000

LimeGreen:
1000000000
White: 14540253
Orange: 14384446
Purple: 11751612
Light Blue: 7047881
Yellow: 11642407
Lime: 4304440
Pink: 13665433
Gray: 4210752
Light Gray: 10133921
Cyan: 3042953
Purple: 8273333
Blue: 3029133
Brown: 5190175
Green: 3491355
Red: 9843760
Black: 1644054

/summon Fireball ~ ~1 ~ {direction:[0.0,0.0,0.0]}

/testfor @p {SelectedItemSlot:SLOT,Inventory:[{Slot:SLOTb,­tag:{display:{Name:"NAME"}}}]}
Slots are: 0-8

/summon Item ~ ~1 ~ {Item:{id:ITEM,Count:AMOUNT},PickupDelay:­32768,Age:-32768}

/tellraw @a {text:"MESSAGE", color:COLOUR}

All the colours:
black dark_blue dark_green dark_aqua dark_red dark_purple gold gray dark_gray blue green aqua red light_purple yellow white

Link with 2 other colours!
/tellraw @a {"text":"","extra":[{"text":"TEXT HERE","color":"COLOR HERE"},{"text":"TEXT HERE, ","color":"COLOR HERE","clickEvent":{"action":"open_url","value":"LINK HERE"}}]}

3 Links with 4 colours!
/tellraw @a {"text":"","extra":[{"text":"TEXT HERE","color":"COLOR HERE"},{"text":"TEXT HERE","color":"COLOR HERE","clickEvent":{"action":"open_url","value":"LINK HERE"}},{"text":"TEXT HERE","color":"COLOR HERE","clickEvent":{"action":"open_url","value":"LINK HERE"}},{"text":"TEXT HERE","color":"COLOR","clickEvent":{"action":"open_url","value":"LINK HERE"}}]}

Immovable and zombies/skeletons dont burn in day!
/summon MOB ~ ~ ~ {Attributes:[{Name:generic.movementSpeed,Base:0.001}],Equipment:[{},{},{},{},{id:388}]}

Just a immovable mob
/summon MOB ~ ~ ~ {Attributes:[{Name:generic.movementSpeed,Base:0.001}]

For name - /give @p ITEM 1 0 {display:{Name:"nameGoesHere"}}


For Lore - /give @p ITEM 1 0 {display:{Lore:["loreGoesHere"]}}


For Enchantment - /give @p ITEM 1 0 {ench:[{id:(id),lvl:(level)}]}

For name lore and enchantments!
/give @p ITEM 1 0 {ench:[{id:ID,lvl:LEVEL}],display:{Name:"nameGoesHere",Lore:["loreGoesHere"]}}

To add more enchantments just add: {id:ID,lvl:LEVEL} and once youre done end the enchantments with a bracket ] lvl:LEVEL}]
/give @p ITEM 1 0 {ench:[{id:ID,lvl:LEVEL},color=rgb(255, 0, 0)]{id:ID,lvl:LEVEL}][/color],display:{Name:"nameGoesHere",Lore:["loreGoesHere"]}}

1.8 - /give @p skull 1 3 {SkullOwner:"PLAYERNAME"}
1.7.9 - /give @p 397 1 3 {SkullOwner:"PLAYERNAME"} You can use skull for 1.7.9 aswell!

Player Heads [created by mojang]:
/give @p 397 1 3 {SkullOwner:"MHF_Blaze"}

/give @p 397 1 3 {SkullOwner:"MHF_CaveSpider"}

/give @p 397 1 3 {SkullOwner:"MHF_Chicken"}

/give @p 397 1 3 {SkullOwner:"MHF_Cow"}

/give @p 397 1 3 {SkullOwner:"MHF_Enderman"}

/give @p 397 1 3 {SkullOwner:"MHF_Ghast"}

/give @p 397 1 3 {SkullOwner:"MHF_Herobrine"}

/give @p 397 1 3 {SkullOwner:"MHF_LavaSlime"}

/give @p 397 1 3{SkullOwner:"MHF_MushroomCow"}

/give @p 397 1 3 {SkullOwner:"MHF_Pig"}

/give @p 397 1 3 {SkullOwner:"MHF_PigZombie"}

/give @p 397 1 3 {SkullOwner:"MHF_Sheep"}

/give @p 397 1 3 {SkullOwner:"MHF_Slime"}

/give @p 397 1 3 {SkullOwner:"MHF_Spider"}

/give @p 397 1 3 {SkullOwner:"MHF_Squid"}

/give @p 397 1 3 {SkullOwner:"MHF_Villager"}

/give @p 397 1 3 {SkullOwner:"MHF_Golem"}


/give @p 397 1 3 {SkullOwner:"MHF_Cactus"}

/give @p 397 1 3 {SkullOwner:"MHF_Chest"}

/give @p 397 1 3 {SkullOwner:"MHF_Melon"}

/give @p 397 1 3 {SkullOwner:"MHF_OakLog"}

/give @p 397 1 3 {SkullOwner:"MHF_Pumpkin"}

/give @p 397 1 3 {SkullOwner:"MHF_TNT"}
/give @p 397 1 3 {SkullOwner:"MHF_TNT2"}



/give @p 397 1 3 {SkullOwner:"MHF_ArrowUp"}

/give @p 397 1 3 {SkullOwner:"MHF_ArrowDown"}

/give @p 397 1 3 {SkullOwner:"MHF_ArrowLeft"}

/give @p 397 1 3 {SkullOwner:"MHF_ArrowRight"}

/give @p 397 1 3 {SkullOwner:"MHF_Exclamation"}

/give @p 397 1 3 {SkullOwner:"MHF_Question"}