I just made myself a little pinhole monacle out of a copper pipe.
Basically you put the large hole to your eye and look at stuff through the small hole. It's surprisingly effective, while my left eye is quite short sighted I can read 2 inch high lettering at about 7 metres using this. It lets you focus on things fairly well at any distance, however it is limited by the fact that the small aperture only lets in a small amount of light, so it doesn't work well in dim light.
I got the idea when my friend forgot his glasses the other day which prevented him from taking notes in a lecture, so I kerjiggered a monacle together out of a piece of paper. I thought I might try making a more permanent one.
I sanded it a bit to shine it up, although unfortunately there are marks on one end from the vice.
I also haven't got round to making a remote ignition system for the pulse-jet engine from my last journal, as I have yet to get some long enough wires. Maybe in the next few weeks I will.