The idea behind the concept, was that if mugged, when the mugger says 'Give me your wallet!' you can actually give the mugger your wallet, clean round the face.
The construction was simple, i bought a set of marble floor mosaic tiles from my local diy store. I seperated the smal squares, the stuck them together using super glue into a rough wallet shape. I then Stuck the two sides onto a piece of leather, then added two side pockets to hold notes.