darryl Design Bottle lights (dDBl)
This concept comes from the idea of using what you have, to get what you want. You take regular beer bottles and cut the bottom off around 30mm from the bottom. The bottom can be used as candle holders. The top can be used to insert a cable and light into and then hung up like a light. Beer bottles come in various colours and will give a nice colour to a room. With energy saving small lights, this could be very environmentally friendly.
One concern might be the heat generated by the light bulb, and whether or not the bottle might get too hot.
