Today I rumaged through the toolbox (in my newly converted, painted-white, storage-walled workshop/studio). Contents include screws, drill bits, nails, rings, plugs, hooks in many shapes and sizes. After some experimenting I settled on trying to assemble an alphabet with the allen keys, which I seem to have in abundance and in various sizes. As you might suspect I've been to Ikea few times in the past years. Here's some evidence of an afternoon's assembling and re-assembling of allen key - letter shapes.
Free download of AllenKeys-beta is now available on dafont.