I think that my nomination for bombproof piece of kit has to be my Victorinox SAK. I still love using the can opener and dislike the tendency for food companies using the ring-pull openers as they deny me my pleasure to a certain degree.
On the Landy debate, I think I will be branded as some sort of heretic. I have had three Defenders: one 110 and two 90s. I currently have a 90 which is my 'car', getting me to and from work and other little journeys locally. However, it is uncomfortable, leaks, is noisy and thirsty, is cold in winter (the heater takes ages to warm up), has a daftly large turning circle, is expensive to tax and maintain but, on those few occasions when it snows, it does allow me to get out on 'mercy missions' or get to work. Its shape is that of a vehicle drawn by a two-year-old and, because of its history, it has iconic status.
Maybe if I had more mechanical know-how and was able to tinker meaningfully with it, I would feel a greater sense of attachment but I don't and so I haven't. I sort of understand the 'iconic status' bit but, as a means of transport, mostly on roads, it is a l-o-n-g way from ideal. Why do I keep it? Habit and the mantra from meine Sturmbahnfuhrer that buying 'a new car' (i.e. any car other than the one I've got) is such a waste of money. So, I remain committed to sitting in my rattling metal box until I win a meaningful amount in the National Lottery...