So far I have a suction clamp for moving glass (£5.95 B&Q); a telescopic mop (£5.98 Sainsurys); and a quil stem for a bike (£19.00 Gear Bikes). More to come.
There's a tradition in bodging these things. I've taken advice from Simon Osbourne who used a mount similar to the one I'm trying to put together.
I've also spoken to Olly Sanders who made the camera mount used in his latest Rough Water handling DVD from a tile clamp and tent poles.
When I get hold of the camera I'll work on the business end of the mount.