We are going to need quite a few of these and thought I might make my own, mainly because I can't find any in shops here!

So, what fabric would you suggest? Obviously it needs to be a heavier fabric, I'm not too clued up on fabric types so 'names' would be great!

And what would you fill it with? I've read about filling it with sand (good option but need to find sand as well), wheat/rice (but tend to attract mice) or kitty litter (sounds like the best option but don't know if I want door snakes filled with kitty litter!).

Any help would be great