It's a glorious song, that has uses in Primary School. City children, despite illustrations in books, can seldom explain why you mend a bucket with straw. The bucket is plastic, so is the (drinking) straw! We've made traditional buckets with thick card or balsa wood (no, they weren't waterproof). Many children knew about sharpening knives on a stone, but the only children who knew about wooden buckets were from Vietnam. We've drunk through real straws on a farm visit, where a boy of six asked "How does the milk get out of the bottle and into the cow?"