diff --git a/yapion/prototypes4.yapion b/yapion/prototypes4.yapion
index 7e93f3bb..be62e87d 100644
--- a/yapion/prototypes4.yapion
+++ b/yapion/prototypes4.yapion
@@ -1,7 +1,19 @@
 {
   wg{
     displayName(WarGear)
-    schematic(sections4/WGArena.schem)
+    defaultSkin(WarGear)
+    skins[
+      {
+        name(WarGear)
+        schematic(sections4/WGArena.schem)
+        testblockSchematic(sections4/WGTestblock.schem)
+      },
+      {
+        name(X-Mas WarGear)
+        schematic(sections4/christmas/WGArena.schem)
+        testblockSchematic(sections4/christmas/WGTestblock.schem)
+      }
+    ]
     sizeX(178)
     sizeY(119)
     sizeZ(221)
@@ -13,7 +25,6 @@
       offsetX(56)
       offsetY(45)
       offsetZ(135)
-      schematic(sections4/WGTestblock.schem)
       extensionX(20)
       extensionPositiveY(20)
       extensionNegativeZ(12)
@@ -34,7 +45,19 @@
   }
   wg35{
     displayName(Pro WarGear)
-    schematic(sections4/WGArena35.schem)
+    defaultSkin(Pro WarGear)
+    skins[
+      {
+        name(Pro WarGear)
+        schematic(sections4/WGArena35.schem)
+        testblockSchematic(sections4/WGTestblock35.schem)
+      },
+      {
+        name(X-Mas Pro WarGear)
+        schematic(sections4/christmas/WGArena35.schem)
+        testblockSchematic(sections4/christmas/WGTestblock35.schem)
+      }
+    ]
     sizeX(178)
     sizeY(119)
     sizeZ(221)
@@ -46,7 +69,6 @@
       offsetX(56)
       offsetY(45)
       offsetZ(135)
-      schematic(sections4/WGTestblock35.schem)
       extensionX(20)
       extensionPositiveY(20)
       extensionNegativeZ(12)
@@ -67,7 +89,24 @@
   }
   mwg{
     displayName(MiniWarGear)
-    schematic(sections4/MWGArena.schem)
+    defaultSkin(MiniWarGear)
+    skins[
+      {
+        name(MiniWarGear)
+        schematic(sections4/MWGArena.schem)
+        testblockSchematic(sections4/MWGTestblock.schem)
+      },
+      {
+        name(X-Mas MiniWarGear)
+        schematic(sections4/christmas/MWGArena.schem)
+        testblockSchematic(sections4/christmas/MWGTestblock.schem)
+      },
+      {
+        name(X-Mas MiniWarGear 2)
+        schematic(sections4/christmas/MWGArena2.schem)
+        testblockSchematic(sections4/christmas/MWGTestblock2.schem)
+      }
+    ]
     sizeX(107)
     sizeY(94)
     sizeZ(141)
@@ -79,7 +118,6 @@
       offsetX(35)
       offsetY(45)
       offsetZ(95)
-      schematic(sections4/MWGTestblock.schem)
       extensionX(7)
       extensionPositiveY(7)
       extensionNegativeZ(7)
@@ -100,7 +138,19 @@
   }
   as{
     displayName(AirShip)
-    schematic(sections4/ASArena.schem)
+    defaultSkin(AirShip)
+    skins[
+      {
+        name(AirShip)
+        schematic(sections4/ASArena.schem)
+        testblockSchematic(sections4/ASTestblock.schem)
+      },
+      {
+        name(X-Mas AirShip)
+        schematic(sections4/christmas/ASArena.schem)
+        testblockSchematic(sections4/christmas/ASTestblock.schem)
+      }
+    ]
     sizeX(121)
     sizeY(64)
     sizeZ(177)
@@ -114,7 +164,6 @@
       copyOffsetX(-1)
       copyOffsetY(1)
       copyOffsetZ(32)
-      schematic(sections4/ASTestblock.schem)
     }
     build{
       sizeX(115)
@@ -130,7 +179,19 @@
   }
   ws{
     displayName(WarShip)
-    schematic(sections4/WSArena.schem)
+    defaultSkin(WarShip)
+    skins[
+      {
+        name(WarShip)
+        schematic(sections4/WSArena.schem)
+        testblockSchematic(sections4/WSTestblock.schem)
+      },
+      {
+        name(X-Mas WarShip)
+        schematic(sections4/christmas/WSArena.schem)
+        testblockSchematic(sections4/christmas/WSTestblock.schem)
+      }
+    ]
     sizeX(214)
     sizeY(97)
     sizeZ(185)
@@ -145,7 +206,6 @@
       offsetX(20)
       offsetY(20)
       offsetZ(-1)
-      schematic(sections4/WSTestblock.schem)
       extensionX(12)
       extensionNegativeZ(8)
       extensionPositiveZ(8)
@@ -164,7 +224,19 @@
   }
   ws_inner{
     displayName(WarShip)
-    schematic(sections4/WSInnerArena.schem)
+    defaultSkin(WarShip)
+    skins[
+      {
+        name(WarShip)
+        schematic(sections4/WSInnerArena.schem)
+        testblockSchematic(sections4/WSTestblock.schem)
+      },
+      {
+        name(X-Mas WarShip)
+        schematic(sections4/christmas/WSInnerArena.schem)
+        testblockSchematic(sections4/christmas/WSTestblock.schem)
+      }
+    ]
     sizeX(214)
     sizeY(97)
     sizeZ(185)
@@ -179,7 +251,6 @@
       offsetX(20)
       offsetY(20)
       offsetZ(154)
-      schematic(sections4/WSTestblock.schem)
       extensionX(12)
       extensionNegativeZ(8)
       extensionPositiveZ(8)