Zombies have a 1/30 chance of spawning with wings

src/main/java/com/minelittlepony/model/ponies/ModelZombiePony.java

@@ -4,9 +4,19 @@ import com.minelittlepony.model.ModelMobPony;
 import com.minelittlepony.render.AbstractPonyRenderer;
 
 import net.minecraft.entity.Entity;
+import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.util.math.MathHelper;
 
 public class ModelZombiePony extends ModelMobPony {
+
+    public boolean isPegasus;
+
+    @Override
+    public void setLivingAnimations(EntityLivingBase entity, float move, float swing, float ticks) {
+        isPegasus = entity.getUniqueID().getLeastSignificantBits() % 30 == 0;
+        isFlying = !entity.onGround;
+    }
+
     @Override
     protected void rotateLegs(float move, float swing, float ticks, Entity entity) {
         super.rotateLegs(move, swing, ticks, entity);
@@ -24,4 +34,9 @@ public class ModelZombiePony extends ModelMobPony {
     public boolean islookAngleRight(float move) {
         return MathHelper.sin(move / 20) < 0;
     }
+
+    @Override
+    public boolean canFly() {
+        return isPegasus;
+    }
 }

src/main/java/com/minelittlepony/render/layer/LayerHeldPonyItem.java

@@ -4,7 +4,6 @@ import com.minelittlepony.model.BodyPart;
 import com.minelittlepony.model.capabilities.IModel;
 
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.model.ModelBase;
 import net.minecraft.client.model.ModelBiped;
 import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.block.model.ItemCameraTransforms.TransformType;
@@ -39,14 +38,13 @@ public class LayerHeldPonyItem<T extends EntityLivingBase> extends AbstractPonyL
         ItemStack right = getRightItem(entity);
 
         if (!left.isEmpty() || !right.isEmpty()) {
-            ModelBase model = getMainModel();
+            IModel model = getMainModel();
 
             pushMatrix();
-            if (model instanceof IModel) {
-                ((IModel) model).transform(BodyPart.LEGS);
-            }
 
-            if (model.isChild) {
+            model.transform(BodyPart.LEGS);
+
+            if (model.isChild()) {
                 translate(0, 0.625, 0);
                 rotate(-20, -1, 0, 0);
                 scale(.5, .5, .5);