I've always loved the concept behind klefki's design, but I've never been a personal fan of Pokemon that are heavily based on inanimate objects.
I think it would have been fun if klefki had been designed as a small, thieving rodent that stole your keys and then promptly darted out of sight

Design meant to resemble a mouse/rat, but also inspired by opossums


Pokemon belong to Nintendo.
Drawn on SAI.