Look no further than these adorable cat hat crochet patterns! Whether you’re a seasoned pro or just starting out, there’s a pattern here for everyone. Cat Hat With Flowers.

What started as a lark has turned into steady work for Sara Thomas, author of 'Cats in Hats: 30 Knit and Crochet Patterns for Your Kitty.' ...

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Once they’re outfitted with crocheted hats, cats become comfortable (and adorable) test subjects. The new method is laid out in a study published in the Journal of Neuroscience Methods .

Researchers from the University of Montreal have created a first-of-its-kind electrode-lined crochet beanie that can be used to measure a cat’s brain activity.

The hats are available for dogs and cats and come in a variety of sizes, from small to extra large. “You know, for $25 for a small one, they can’t believe it,” said De La Garza.