Here's another one of my all-time favorite Waifus, the magical cat Blair.
Blair is one of the first characters we are introduced to in Soul Eater, after Soul and Maka. The heroes mistake Blair for a bona fide witch, and the last soul that Soul needs to consume in order to become a death scythe.
To their dismay, they find out Blair isn't a witch at all, but a magical cat who can shapeshift.
Blair in her cat form is straight-up adorable. She is a small black cat with a long, curled tail and a crooked, curly witch's hat.
Blair routinely shows up throughout the rest of the series to the chagrin of Maka, as every time she appears, it seems to be as a ploy to lure Soul over to her side, to become her own weapon. Soul never succumbs to her allure, though he does pop a nosebleed or two.
Blair uses pumpkin-themed magic, much like every other witch has themed magical powers. Her pumpkins are typically explosive projectiles, and she uses them to assist the DWMA students in their quest to destroy the Kishin.