Luna Lovegood’s Butterbeer Cork Necklace by three11j77 on etsy

I thought so! There are a bunch of tutorials over at The Leaky Cauldron.
Their crafts include Luna Lovegood’s Raddish Earrings and a wide variety of foods.

Harry Potter series - Luna Lovegood Crochet Doll by deadcraft on etsy.

If Luna is not the character you’re looking for, they also have Remus Lupin, Lord Voldemort, Severus Snape, Sirius Black, Fred and George Weasley, Ron Weasley, Hermione Granger, Draco Malfoy and Harry Potter.