diff --git a/core/src/sagittarius/model/Arrow.java b/core/src/sagittarius/model/Arrow.java
index 6d72e56..1a3d669 100644
--- a/core/src/sagittarius/model/Arrow.java
+++ b/core/src/sagittarius/model/Arrow.java
@@ -1,6 +1,7 @@
 package sagittarius.model;
 
 import java.util.ArrayList;
+import java.util.Random;
 
 import com.badlogic.gdx.files.FileHandle;
 import com.badlogic.gdx.graphics.Color;
@@ -49,7 +50,12 @@ public class Arrow extends EntityQuad {
         this.force = computeForce();
         this.landed = false;
 
-        Pixmap pm = new Pixmap(new FileHandle("core/assets/arrow1.png"));
+        Random random = new Random();
+        Pixmap pm = new Pixmap(new FileHandle(new String[] {
+            "core/assets/arrow1.png",
+            "core/assets/arrow2.png"
+        }[random.nextInt(2)]));
+
         pm.setBlending(Pixmap.Blending.None);
         for (int x = 0; x < pm.getWidth(); x++) {
             for (int y = 0; y < pm.getHeight(); y++) {
diff --git a/core/src/sagittarius/model/Planet.java b/core/src/sagittarius/model/Planet.java
index 89078a1..c9fa85e 100644
--- a/core/src/sagittarius/model/Planet.java
+++ b/core/src/sagittarius/model/Planet.java
@@ -1,5 +1,7 @@
 package sagittarius.model;
 
+import java.util.Random;
+
 import com.badlogic.gdx.files.FileHandle;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.Pixmap;
@@ -20,7 +22,14 @@ public class Planet extends EntityCircle {
     public Planet(Vector2 position, float mass, float radius, Color color) {
         super(0, mass, color, position, radius);
 
-        Pixmap pm = new Pixmap(new FileHandle("core/assets/planet1.png"));
+        Random random = new Random();
+        Pixmap pm = new Pixmap(new FileHandle(new String[] {
+            "core/assets/planet1.png",
+            "core/assets/planet2.png",
+            "core/assets/planet3.png",
+            "core/assets/planet4.png"
+        }[random.nextInt(4)]));
+        
         pm.setBlending(Pixmap.Blending.None);
         for (int x = 0; x < pm.getWidth(); x++) {
             for (int y = 0; y < pm.getHeight(); y++) {