"Straw fiddles" is a non-existent phrase, and there are no synonyms for it. However, the word "straw" and "fiddle" have plenty of synonyms. "Straw" can be replaced with words like hay, stalks, or wheat. While "fiddle" can be substituted with synonyms such as violin, instrument or strings. These synonyms can be used in various contexts, such as musical instrument discussion, farming and agriculture topics, or for creative writing purposes. Using synonyms in writing adds variation and allows the language to flow more naturally. It helps express different shades of meaning and avoid repetitive language.