List of the hiddens (or semi hiddens) blocks:

-Most double slabs (the stone_double_slab need to be setblock, using /setblock minecraft:double_stone_slab [8-15]
-Acacia stairs (up, down, and connected)
-Acacia chair: /summon ArmorStand ~ ~-0.75 ~ {NoGravity:1,ArmorItems:[{},{},{},{id:diamond_shovel,Damage:1,Count:1b,tag:{Unbreakable:1}}]}
-Flower pot with a cactus inside
-Old wood slab (usage: /give @p stone_slab 1 2)
-Old Double wood slab (usage: /setblock double_stone_slab 1 2 - /setblock double_stone_slab 1 10)
-Reeds (usage: /setblock vine 0)
-Brown mushroom (need an editor like world edit) (need Optifine) (usage: create a column of brown mushroom to make a small tree)


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			Map makers tools

Custom characters
(some characters are not used.)
Copy/paste this list on Minecraft.

食 飠饣飡 飢 飣 飤饤 饥 飥 飦 飧 飨饦 饧 飩 飪 飫 飬 飭 飮 飯 飰 飱
飲饨 饩 饪 饫 饬 饭 饮 飯 飳 飴 飵 飶 飷 飸 飹 飻 飼 飽 飾 飿饯 饰 饱 饲 饳 饴 飼 
飺 餀 餁 餂 餃 餄 餆 餇 餈 餉 養 餋 餌 餍 餎 餏饵 饶 饷 饸 饹 饺 饻 饼
餐 餑 餒 餓 餔 餕 餖 餗 餘 餙 餝饽 饾 饿 馀 馁 馂 餅 餚 餛 餜 餞 餟 餠
餡 餢 餣 餤 餥 餦 餧 館 餩 館馃 馄 馅 馆 餪 餫 餬 餭 餮 餯 餰 餱 餲 餳
餴 餵 餷馇 馈 馊 馋 餶 餸 餹 餺 餻 餼 餽 餾 餿 饀 饁 饂 饃馉 馌 馍 馎
馏 馐 饄 饅 饆 饇 饈 饉馓 馔 饊 饋 饌 饍 饎 饏 饐 饑 饒 饓飙 飚 饔 饕 饖
饗 饘 饙 饚 饛 饜 饝 饞 饟 饠 饡 饢


			Weapons skins:

all the swords and axes have differents color skins.

usage: /give @p minecraft:WEAPON 1 [1-5] {Unbreakable:1}


			Aura spells:

usage: /give @p diamond_hoe 1 [1-7] {Unbreakable:1}



			Custom items icons:

usage: 	/give @p carrot_on_a_stick 1 [1-23] {Unbreakable:1}
		/give @p diamond_hoe 1 [145-167] {Unbreakable:1}
							
							