Let's say you want a miniature replica of the Bat-Signal that plugs into your computer's USB port and projects the signal onto the wall...and who doesn't? Well, you have a couple of choices. There's a miniature Bat-Signal available from bigbadtoystore.com for only $394.94. Then there's Instructables.com, where they have instructions on how to build your own miniature Bat-signal out of household materials for about four bucks. Hmmm, decisions, decisions. I guess the question is, how badly do you want that Bat-signal on your wall?