Hi Everyone,
Thank you for your suggestions, after looking at what was required I decided to fabricate what I needed.
I cut up a piece of pipe from an old garden sprayer, with a few small holes drilled and some bungee cord I came up with the following which seems to do the trick. (Pictures to follow)
Whilst constructing I noticed a half bag of stainless nyloc nuts(after cutting and drilling the tube) and with a bit of bungee found they would also serve the purpose.
The Nyloc have rounded edges so with two nuts and the knot in between it would avoid any fraying of the bungee cord.
Big thanks to previous suggestions and comments.
Cheers.