Another puzzle-themed piece to add to our ever growing collection is the Imperial Puzzle Carpet. Available at Ona in packages of 6 for $56, the modular carpet can be arranged just like a puzzle, though its slightly irregular pieces mean that there is more than one "right" way to do so. Only three colors are available - light grey, charcoal and sand - so the puzzle will attract interest, but won't detract from the rest of the room.

[via Babygadget, which suggests that the grey colors would help hide stains, making the rug a great choice for a kids' playrooms]

We have a soft spot for puzzle pieces when it comes to design. It's one thing to use them on our tables or in our gardens, but Puzzle Floor really hits it out of the park with their puzzle-piece hardwood floors. Each piece is made from northern hardwood and is available in 13 different colors that will flatter almost all rooms. The colors can be mixed and matched to create unique designes, if desired. There are two shapes, a "male" and a "female" which snap together easily, much in the same way that laminate flooring does, though the sealed hardwood will last longer than laminate because it can be refinished every few years to eliminate any signs of wear. The flooring is $15 per square foot.

Associated with a rug because of its shape, this very unique Hardwood Rug is made from thin beechwood and cork. It is so thin, in fact, that it can roll up for easy portability and storage. When unrolled, it covers a 30x59-inch area. The "rug" is designed to add a touch of elegance to spaces that have industrial or concrete flooring, or even to apartments where it is not worth the hassle or expense to lay down full hardwood floors. Price: $249.