I ran out of string recently. Some years ago there was a lot of hemp string in the bargain box an I bought loads of balls, I think it might have been 50p and I spent a fiver and got ten, but long enough ago I can't remember exactly. This time I looked around and found there has been a fivefold increase in the price, cheapest ball £2.50p , and that was not a large ball. In the end the cheapest way of buying it was white cotton string, and I had to get my bean sticks up. The missus objects to the colour, but it will soon get dirty. I'll use anything natural, that's not plastic, so It can go in the compost with the plant when it has finished.