This is the fourteenth lesson in a series introducing 10-year-olds to programming through Minecraft. Learn more here.

The class suggested these two mods on the second-last day of class :) I figured it was simple enough to combine them into one activity as it builds on what we did with the chainsaw.

Add a new class, MoustacheHelmet with a superclass of net.minecraft.item.ItemArmor.

Add the following code to MoustacheHelmet.java

public MoustacheHelmet() {
    super(5001, EnumArmorMaterial.DIAMOND, 3, 0);
    setUnlocalizedName("moustache");
    setCreativeTab(CreativeTabs.tabCombat);
    func_111206_d("generic:moustachehelmet");
}

@Override
public String getArmorTexture(ItemStack stack,
                                  Entity entity,
                                  int slot,
                                  String type)
{
    return "generic:textures/models/armor/prestone_1.png";
}

Add a new class SuperSpeedBoots with a superclass of net.minecraft.item.ItemArmor.

public SuperSpeedBoots() {
    super(5002, EnumArmorMaterial.DIAMOND, 3, 3);
    setUnlocalizedName("superspeed");
    setCreativeTab(CreativeTabs.tabCombat);
    func_111206_d("generic:superspeedboots");
}

@Override
public String getArmorTexture(ItemStack stack,
                                  Entity entity,
                                  int slot,
                                  String type)
{
    return "generic:textures/models/armor/prestone_1.png";
}

@Override
public void onArmorTickUpdate(World world, 
                              EntityPlayer player,
                              ItemStack itemStack)
{
player.addPotionEffect(
           new PotionEffect(
             Potion.moveSpeed.getId(),100,2));
}

In our main mod file, create variables for our two new parts of the armor

public static final Item moustacheHelmet = 
              new MoustacheHelmet();
public static final Item superSpeedBoots = 
              new SuperspeedBoots();

and register them with the game in the load method

GameRegistry.registerItem(
      moustacheHelmet, "moustacheHelmet");
LanguageRegistry.addName(
      moustacheHelmet, "Moustache Helmet");

GameRegistry.registerItem(
      superSpeedBoots, "superspeedBoots");
LanguageRegistry.addName(
      superSpeedBoots, "Super Speed Boots");

We'll also make recipes this time (using diamonds, since we already have a mod to create diamonds from dirt)

GameRegistry.addRecipe(
    new ItemStack(moustacheHelmet),
    "XXX",
    "X X",
    'X', Item.diamond);

GameRegistry.addRecipe(
    new ItemStack(superSpeedBoots),
    "X X",
    "X X",
    'X', Item.diamond);

Now we have to copy our files (prestone_1.png and prestone2_.png) to

 forge
 \mcp
 \src
 \minecraft
 \assets
 \generic
 \textures
 \models
 \armor

prestone_2

prestone_1

And copy the inventory item images (moustachehelmet.png and superspeedboots.png) into

forge
\mcp
\src
\minecraft
\assets
\generic
\textures
\items

superspeedboots

moustachehelmet

Make sure you have a folder link to:

forge
\mcp
\src
\minecraft
\assets

That's about it! Your player can now have a moustache for a helmet, and a constant Speed III potion once the boots are equipped.