Here's a great, and fairly unique, approach to furniture building with a recycling/repurposing slant. These were built by the design firm "James Plumb", and are pretty appealing to the eye, not to mention eclectic in their array of colors. The frames, in this case, are made of steel, but could be built from wood just as easily. These just might look great in your self-built, free form, tiny/small house- especially if you're into the re-use side of things. They'd certainly stand as a conversation piece.
Outdated/"vintage" suitcases can usually be found at yard sales, tossed on curbs, or in second-hand/Goodwill-type stores. I actually own a pair myself- although I have other plans for them.
There might be a second post coming today as well, so "stay tuned".
-Derek "Deek" Diedricksen