When I want anything to do with modelling I follow a simple process;
I go to Antenociti's Workshop.
I then click 'Scratch builders paradise'
Enter the keyword and taadaaaaa
You're looking for the craft cork roll at the bottom
I have absolutely no ties to AW, it's just amazingly awesome and has everything you could ever need for modelling at decent prices as long as you look hard enough (the site isn't the best to navigate)