This is such a simple use of old socks you don't need to be able to sew or anything. You will need some old socks, a jar or tin, and some scissors.
So first, you need to cut the 'foot' off the sock, then put the sock on your choosen recepticle. I tried it upto the rim first, then I pulled it all the way up to cover the screw top lines.
Voila!! How easy was that. It didn't even take 2 minutes and I've re-used an old sock. You can add any embellishments you like (there is actually some ribbon tied round this now but I've forgotton to photograph it!).