diff --git a/src/pocketmine/tile/Bed.php b/src/pocketmine/tile/Bed.php
index fb1351f72..6c241f9b9 100644
--- a/src/pocketmine/tile/Bed.php
+++ b/src/pocketmine/tile/Bed.php
@@ -35,8 +35,8 @@ class Bed extends Spawnable{
 	const TAG_COLOR = "color";
 
 	public function __construct(Level $level, CompoundTag $nbt){
-		if(!$nbt->hasTag(self::TAG_COLOR, ByteTag::class)){
-			$nbt->setTag(new ByteTag(self::TAG_COLOR, 14)); //default to old red
+		if(!$nbt->hasTag(self::TAG_COLOR, ByteTag::class)){ //TODO: check PC format
+			$nbt->setByte(self::TAG_COLOR, 14, true); //default to old red
 		}
 		parent::__construct($level, $nbt);
 	}
diff --git a/src/pocketmine/tile/FlowerPot.php b/src/pocketmine/tile/FlowerPot.php
index 0ae6a58dd..7dc3fad36 100644
--- a/src/pocketmine/tile/FlowerPot.php
+++ b/src/pocketmine/tile/FlowerPot.php
@@ -37,11 +37,12 @@ class FlowerPot extends Spawnable{
 	const TAG_ITEM_DATA = "mData";
 
 	public function __construct(Level $level, CompoundTag $nbt){
+		//TODO: check PC format
 		if(!$nbt->hasTag(self::TAG_ITEM, ShortTag::class)){
-			$nbt->setTag(new ShortTag(self::TAG_ITEM, 0));
+			$nbt->setShort(self::TAG_ITEM, 0, true);
 		}
 		if(!$nbt->hasTag(self::TAG_ITEM_DATA, IntTag::class)){
-			$nbt->setTag(new IntTag(self::TAG_ITEM_DATA, 0));
+			$nbt->setInt(self::TAG_ITEM_DATA, 0, true);
 		}
 		parent::__construct($level, $nbt);
 	}
diff --git a/src/pocketmine/tile/Furnace.php b/src/pocketmine/tile/Furnace.php
index 91289501c..a0f9a1b73 100644
--- a/src/pocketmine/tile/Furnace.php
+++ b/src/pocketmine/tile/Furnace.php
@@ -54,7 +54,7 @@ class Furnace extends Spawnable implements InventoryHolder, Container, Nameable{
 
 	public function __construct(Level $level, CompoundTag $nbt){
 		if(!$nbt->hasTag(self::TAG_BURN_TIME, ShortTag::class) or $nbt->getShort(self::TAG_BURN_TIME) < 0){
-			$nbt->setTag(new ShortTag(self::TAG_BURN_TIME, 0));
+			$nbt->setShort(self::TAG_BURN_TIME, 0, true);
 		}
 
 		if(
@@ -62,16 +62,16 @@ class Furnace extends Spawnable implements InventoryHolder, Container, Nameable{
 			$nbt->getShort(self::TAG_COOK_TIME) < 0 or
 			($nbt->getShort(self::TAG_BURN_TIME) === 0 and $nbt->getShort(self::TAG_COOK_TIME) > 0)
 		){
-			$nbt->setTag(new ShortTag(self::TAG_COOK_TIME, 0));
+			$nbt->setShort(self::TAG_COOK_TIME, 0, true);
 		}
 
 		if(!$nbt->hasTag(self::TAG_MAX_TIME, ShortTag::class)){
-			$nbt->setTag(new ShortTag(self::TAG_MAX_TIME, $nbt->getShort(self::TAG_BURN_TIME)));
+			$nbt->setShort(self::TAG_MAX_TIME, $nbt->getShort(self::TAG_BURN_TIME), true);
 			$nbt->removeTag(self::TAG_BURN_TICKS);
 		}
 
 		if(!$nbt->getTag(self::TAG_BURN_TICKS, ShortTag::class)){
-			$nbt->setTag(new ShortTag(self::TAG_BURN_TICKS, 0));
+			$nbt->setShort(self::TAG_BURN_TICKS, 0, true);
 		}
 
 		parent::__construct($level, $nbt);
diff --git a/src/pocketmine/tile/ItemFrame.php b/src/pocketmine/tile/ItemFrame.php
index 5c6e3396e..6bf003e7c 100644
--- a/src/pocketmine/tile/ItemFrame.php
+++ b/src/pocketmine/tile/ItemFrame.php
@@ -39,11 +39,11 @@ class ItemFrame extends Spawnable{
 
 	public function __construct(Level $level, CompoundTag $nbt){
 		if(!$nbt->hasTag(self::TAG_ITEM_ROTATION, ByteTag::class)){
-			$nbt->setTag(new ByteTag(self::TAG_ITEM_ROTATION, 0));
+			$nbt->setByte(self::TAG_ITEM_ROTATION, 0, true);
 		}
 
 		if(!$nbt->hasTag(self::TAG_ITEM_DROP_CHANCE, FloatTag::class)){
-			$nbt->setTag(new FloatTag(self::TAG_ITEM_DROP_CHANCE, 1.0));
+			$nbt->setFloat(self::TAG_ITEM_DROP_CHANCE, 1.0, true);
 		}
 
 		parent::__construct($level, $nbt);
diff --git a/src/pocketmine/tile/Skull.php b/src/pocketmine/tile/Skull.php
index fa6b30c1e..891b8cbb3 100644
--- a/src/pocketmine/tile/Skull.php
+++ b/src/pocketmine/tile/Skull.php
@@ -38,15 +38,17 @@ class Skull extends Spawnable{
 	const TYPE_CREEPER = 4;
 	const TYPE_DRAGON = 5;
 
-	const TAG_SKULL_TYPE = "SkullType";
-	const TAG_ROT = "Rot";
+	const TAG_SKULL_TYPE = "SkullType"; //TAG_Byte
+	const TAG_ROT = "Rot"; //TAG_Byte
+	const TAG_MOUTH_MOVING = "MouthMoving"; //TAG_Byte
+	const TAG_MOUTH_TICK_COUNT = "MouthTickCount"; //TAG_Int
 
 	public function __construct(Level $level, CompoundTag $nbt){
 		if(!$nbt->hasTag(self::TAG_SKULL_TYPE, ByteTag::class)){
-			$nbt->setTag(new ByteTag(self::TAG_SKULL_TYPE, 0));
+			$nbt->setByte(self::TAG_SKULL_TYPE, 0, true);
 		}
 		if(!$nbt->hasTag(self::TAG_ROT, ByteTag::class)){
-			$nbt->setTag(new ByteTag(self::TAG_ROT, 0));
+			$nbt->setByte(self::TAG_ROT, 0, true);
 		}
 		parent::__construct($level, $nbt);
 	}