* Fluteworld.com: This website dedicated to all things flute also offers a free flute arrangement of Nyan Cat.
* 8notes.com: Another great resource for free sheet music, including a flute arrangement of Nyan Cat.
* The Flute Page: This website offers a large collection of free flute sheet music, including a flute arrangement of Nyan Cat.
In addition to these websites, you can also search for free Nyan Cat flute sheet music on Google or your favorite search engine.