Cheap flexible mount for video lights

I am making a gopro mount out of upvc pipe which will look a bit like this:

http://www.instructables.com/id/Unde...-GoPro-Camera/

I want to attach a light on the top of each grip with a short flexible arm, something around 3" - any sugestions on the cheapest way to do this?

The flex arm system looks ideal but £40 for two 4" arms seems expensive!

Cheers

You might want to look for locline arms - they are used industrially, and aren't that expensive if you can find a source for small amounts:

http://www.loc-line.com/cat-price-spec.html

That's great, cheers