Portalibros reciclando botellas de plástico / Via ideekiare.
Recycled pop bottle into a chair for dolls --- Porta Agulhas Reciclado
DIY for Children! Repurpose Cardboard Boxes into Kid Crafts/Toys! I love this idea!
Make play kitchen from old boxes and CDs. It's cute, but not too sturdy, as it's just cardboard. Good use of the boxes, though, and I love that it's mostly recycled products. Old CDs for the burners?