Joby Gorillapod SLR - £25/$34
Each of this tripod's legs consists of a series of flexible joints ending in a rubber foot, so you can wrap it around anything from branches to railings. The 'SLR' version comes with a mini ball head and built-in spirit level, but the maximum load of 800g is only suitable for lightweight SLRs.
SteadePod - £25/$25
After screwing the business end of the SteadePod into your camera's tripod socket, you pull out a length of spring-loaded cable and lock it off. The cable has a flat plate at its end, which you stand on, pulling up on the camera so the taut cable keeps it steady. It's a neat idea that works well.
Tamrac ZipShot - £40/$50
Adjusting leg clamps can be a chore, but the ZipShot has none at all. Just release two short cords and the legs spring out and lock in seconds, although collapsing the tripod takes longer. However, while the tripod weighs just 312g, it also feels flimsy. We would worry about loading it to its maximum 1.35kg capacity.