If you are looking for recycled furniture ideas, Francois Duquesnoy is a great place to draw inspiration from. The Dutch designer creates complete interiors in one week's time using things people have left out in the streets. Essentially recycling garbage, Duquesnoy takes a nomadic approach to design.
Last year after moving for the 8th time in a short span, he made a decision to live as sustainably as he could, giving himself a one week deadline to make his own furniture from the materials he found in his new neighborhood. The result was Collectibles and a process he has repeatedly twice since.
While the recycled furniture ideas are whimsical in nature, the pieces are also functional, like a chair made from a bicycle wheel.