@EventHandler
    public void playerDropItem(PlayerDropItemEvent event) {
		ItemStack fea1 = new ItemStack(Material.FEATHER);
		ItemMeta lmeta1 = fea1.getItemMeta();
		lmeta1.setDisplayName(ChatColor.BOLD + "" + ChatColor.GOLD + "You are free!");
		ArrayList<String> lore32 = new ArrayList<String>();
		lore32.add(ChatColor.LIGHT_PURPLE + "Click left click or right to get levitation!");
		lmeta1.setLore(lore32);
		fea1.setItemMeta(lmeta1);

		ItemStack jum = new ItemStack(Material.QUARTZ);
		ItemMeta lmet = jum.getItemMeta();
		lmet.setDisplayName(ChatColor.BOLD + "" + ChatColor.GOLD + "Hm, Jump like a cangaroo!");
		ArrayList<String> lore12 = new ArrayList<String>();
		lore12.add(ChatColor.LIGHT_PURPLE + "Click left or right click to get jump boost!");
		lmet.setLore(lore12);
		jum.setItemMeta(lmet);

		ItemStack str = new ItemStack(Material.BLAZE_POWDER);
		ItemMeta lmet1 = str.getItemMeta();
		lmet1.setDisplayName(ChatColor.BOLD + "" + ChatColor.GOLD + "Chicken is powerful!");
		ArrayList<String> lore2 = new ArrayList<String>();
		lore2.add(ChatColor.LIGHT_PURPLE + "Click left or right click to get super power!");
		lmet1.setLore(lore2);
		str.setItemMeta(lmet1);
		lmet1.setUnbreakable(true);

    if (event.getItemDrop().getItemStack().isSimilar(str)) {
    	event.setCancelled(true);
    } else if (event.getItemDrop().getItemStack().isSimilar(fea1)) {
    	event.setCancelled(true);
    } else if (event.getItemDrop().getItemStack().isSimilar(jum)) {
    	event.setCancelled(true);
}
}