Ever since my post last week showing you how to make a box from a recycled cereal packet I've been trying to come up with more ideas to use up all that wasted cardboard that ends up in my bin.
My wife doesn't know it yet and undoubtedly she will now, but I have been squirreling away pieces of cardboard all week long and I think I've found a really good use for some of it.
Here's a fun idea to make a cardboard pinhole camera.
A pin hole camera is a very simple camera without a lens. Effectively a light-proof box with a small hole in one side.
It may look difficult to make but a diagram can be found here courtesy of Francesco Capponi.
Print out the diagram on some paper and then glue the page to some of your collected cardboard.
Instructions to assemble it come in a step by step pictorial below. You can click on the image to enlarge it.
Here's a link to the forum on flickr where you can share pictures and get advice.