As demonstrated by the designers at InDezign, birdhouses don’t have to be handcrafted, wooden objects. TweeTin is an easy add-on to any ordinary tin can, making the transformation from everyday disposable to aviary home in seconds. All that is required is a screw through the bottom of the tin to affix the can horizontally so that the birds can make use of TweeTin’s perch and awning. The TweeTin cap is made of flexible, recycled plastics in order to stay true to the nature-friendly message, and the product itself can be reused from one tin can to another. The simple assembly for humans and easy nesting grounds for birds deserve three cheers – or tweets – of joy.