A tank has an iconic shape and when it deviates from that it looks strange, despite the fact that many of these alternative forms are equally viable. They include designs that are based on steam tractors, tricycles and cannon and ones where ordinary tanks are adapted for different tasks such as mine clearing. In the latter case, the Progvev T is particularly weird, where the gun has been replaced by a reverse mounted Mig fighter jet engine, in order to clear mines by blasting them with an afterburn.

I normally try and avoid military stuff unless there's an ironic design twist, and there is here. Somehow, these crude, mechanical ‘remote control' rifles, used for shooting over trenches manage to emasculate the phallic nature of guns and turn them into something worthy of Rube Goldberg himself. Nevertheless, they are for killing people sneakily, something to remember, while admiring their weirdness.

Metal plate armor is one of the few technologies that emerged, disappeared in the 18th Century then re-emerged briefly during World War 1. Because of the this, WW1 armor has a particularly creepy, anachronistic look, from chain mail fringed splatter masks to body armor which looks decidedly Roman.

Bunker architecture is often better by accident than the deliberate attempts to create an aesthetic based on massive elements, through brutalism. Paul Virilio famously published a book of some of the more extreme versions of the 12,000 bunkers that formed the Atlantic Wall in WWII and Albania has an incredible 700,000 bunkers in a population of 3M, created by its mad leader, Enver Hoxha. Perhaps the strangest of all are the concealed bunkers that litter the Swiss countryside either as fake chalets or as mountains that literally open up to reveal jet fighters.

Some people take paintball very seriously, and the boundary between harmless fun, unintentional irony and plain creepy is blurred. Here are paintball teams that look like outright militia, and some are. They include a church team in full combat gear a German group that re-enacts LAPD swat team offensives, and three very disturbing teams: a Japanese paintball re-enactment of the Yugoslav civil war complete with Serbian militia uniforms; an US vs Iraq shoot em up in Jordan and a sinister third Reich Team with Eagle T-shirts. Vote them down.

From the ground, these inflatable tanks, missile launchers and planes look like children's toys. Yet from the air, these objects are almost indistinguishable from the real thing, complete with accurate thermal signatures over areas such as windows. Think what fun you could have playing havoc with Google Maps and some of these.

Papercraft, knitting, gardening and weapons.

There has probably been nothing like the sight of dazzle ships, before or since. So impressive were they that their patterns were used into WWII, after their efficacy was questionable, because they were thought to boost morale. Dazzle patterns were designed by modernist painters, in the modernist style, bringing about a very strange meeting of bohemian painters and military types.With no all weather camouflage for ships in WWI, these extraordinary designs were painted on ships to confuse rather than obscure. The sliced geometry meant that it was difficult to align split screen range finders, and fake bows made it difficult to gauge speed and heading.We are breaking our usual rule of showing actual objects rather than paintings or models, for two reasons: dazzle ships were very brightly colored, yet there are no color images of their WWI versions; many of the dazzle designs were by modern artists, and the famous painting of a dazzle ship was by one of the people who designed the camouflage itself, Edward Wadsworth.

No other chair extracts more money than the one you sit in to have teeth extracted. Dental chairs have become a testing ground for high tech wizardry and ergonomics, evolving from decorative Victorian models worthy of Dr. Frankenstein's lab., to space-age pods with insect-like composite limb attachments.

The most claustrophobic places in the world. Imagine sleeping in a space smaller that a jail cell, deep under water, with a very large live bomb. This is what the business ends of submarines look like. Brass or steel hatches, like the eyes of a metal insect, peer out on a tiny Jules Verne-like space covered in buttons, gauges and levers, which often contains bunks right next to the torpedos themselves. Torpedo rooms are one of the strangest man made spaces on earth, or rather below it.