Our first cat (may he rest in pieace) had dark fur on his head while being mostly white in general; my mother used to say he's wearing a "Koboldskappe" which would more or less translate to "Sprite's Cap" or "Puck's Hood", something like that. Anyway, that's what inspired this picture's name. ^^;;
I usually don't draw regular cats as opposed to (cartoon-ish) big cats, but this one came and wouldn't let go untill he was drawn.