If you were Bruce Wayne back in 1966, you had to flip a switch located in the head of a William Shakespeare bust to get into the Batcave. It was a pretty sweet setup. Just flip the head, hit the switch and the bookcase opened to reveal the bat-pole entrance to the Batcave. Now you can own a Shakespeare bust bank just like the original.
You could probably rig this thing so that it at least opens a secret bookcase entrance to somewhere, but I would just save up for the full Batcave. It is only $69.99(USD) from Entertainment Earth and you can pre-order one right now.