Magnetized to stick together when you arrange them, these boxes take LEGO-style furniture construction to a new level by leaving exposed surfaces connector-free in any configuration.

Dubbed the BOB system by its creator, Paul Kelley, the component cubes themselves are durable but light and clad in copper that will weather differently over time depending on which surfaces are exposed.

The magnets inside them are designed to let you create anything you can imagine, from chairs, benches, stools and tables to interior space dividers or simply abstract sculptures. Their attraction is strong enough (and the boxes sufficiently lightweight) to allow limited cantilevers as well.

This work is being publicly displayed as part of the London Design Festival (via Inhabitat)- hopefully its creator will also allow the public to play with and reconfigure the exhibit, keeping it fun and interactive. Fans of magnetic furniture designs should be sure to check out this tensile floating table as well, which works on similar but reversed principles, repelling rather than attracting the constituent boxes.