I could have used a couple of these last year.
The separation shelf is a shelf designed for couples that live together. It is built of a 2.5 meter oak lumber with grooves every 10 centimeters and four metal supporters. In regular mode the supporters are inserted into the groves, and serves both as hangers as well as book supports that divides the shelf into different areas. When the couple separates, the supporters are used as working tools which can break the shelf into two parts each partner takes his/her share (that is not necessarily equal) of the common property.
Doomed marital bliss aside, I think it's a fantastic simple and attractive shelf. More pics after the jump.