badge_grabber.rb

require_relative 'lib/mediawiki-butt'
require 'open-uri'

butt = MediaWiki::Butt.new("http://habbo.gamepedia.com")
butt.login("ESAEBSAD", "-REDACTED-")

butt.get_category_members("Category:Missing badge image").each do |page|
  text = butt.get_text(page)
  id = text.match(/id=(.+)\}\}/)[0].delete("id=").delete("}}")
  begin
    read_file = open("http://habboo-a.akamaihd.net/c_images/album1584/#{id}.gif")
  rescue OpenURI::HTTPError
    puts "File not found."
  else
    puts "File found."
    write_file = File.new("Downloads/#{id}.gif", "wb")
    write_file.write(read_file.read)
    write_file.close
  end
end

Is this needed any more as it's ran by a maintenance script now.

@cblair91 I've only used this once, but I like to keep code on me in case I need it for reference.