Indeed, not just Lego. These pieces also work with other similar bricks (see the retailer’s site for the full breakdown), but we are guessing Lego is by far the most likely to be used with it.
For your money you get two bookends, with a metal piece at one side to help keep the books within stable. Once you are up and running, just get your blocks and minifigures and make it personal. Those aren’t included, but we suspect you have a few pieces somewhere.
The price is $19.99 and they are only available at ThinkGeek. On the plus side, that retailer ships worldwide.
Via Junior Hipster