There was huge amount of intriguing work on display at this year's Maison & Oject at Paris Design Week's . From a Dutch company—Ay Illuminate— that sources natural waste materials from Asia, Ethiopia and Swaziland to make handcrafted, ethereal lamps, to a Japanese firm that creates Lego-inspired bricks from tea and coffee grounds, we've rounded up some of the best efficient designs that utilize recycled materials in this year's Maison & Objet.

One of our favorite finds, COLORS‘ Chiba is a Japanese take on classic Danish LEGO bricks made from recycled coffee beans, tea and wood chips—and it smells great!.

Ground coffee was pretty big at this year’s Maison&Objet mega-exhibition, this time Korean housewares brand EcoJun used the tasty beans (and also corn starch) to create stylish biodegradable take-away cups for tea and coffee.

Finnish duo Ko-Ho use local fast-growing produce to create these gorgeous stackable, very robust and recyclable chairs which are made from hemp!