Thanks for the reply Lisa, v helpful. I have loads of sewing books, etc, but thought it would be easier/more helpful to ask on here. I have just bought a load of new needles, as bent my last one last night sewing through some thick material.
Think i will buy a cheap off cut and have a go... Ended up buying an oil cloth bag for my mum for Christmas, as the easy option, rather than just trying it.
x x x