If you like the look of knitted furniture, you might like to take a look at the work of Claire-Anne O'Brien, an Irish textile designer who lives and works in London, and whose furniture designs are basically useable knitted sculptures the visual interest of which will outstrip any couch you could possibly buy.
Of course, as an avid knitter, I'm trying to figure out how they could be replicated. I don't think the average hand-knitter could make an exact copy of these pieces at home because they're at least partly machinery made, but you could probably achieve something along these lines with pre-made furniture legs, a sturdy piece of plywood, and padding. Just be prepared to knit many metres of knitted tubes, because it'll take a lot to create that interlaced effect. If it's too complicated and you don't see your way to laying out, say, €480.00 plus shipping for a Claire-Anne O'Brien stool, you could always stick to making a pouf.