All the time. My personal favorite nicknames that I've given are as followed: Cassandra the Absol, Xerox the Ditto, F. (stands for Furious) George the Primape, Mia the Fearrow, Lady Luck for Chansey, Chatty Cathy the Chatot, Tom Jones the Hitmontop, SailorMoon the Cresslia, and Calle Marie for Malamar.