Good evening all,_I_ve been asked....

Good evening all,

I've been asked to design a shield for a friend who's family motto is "After the rain comes the sun" but in latin of course!

My idea is to split the shield in two and have a dark and a light side. I've found a nice heraldic sun for the light side but I need some heraldic clouds for the dark side. I don't want to draw them freehand if there are some nice examples of what others have done or indeed a "standard cloud".

Any pointers / links / images are gratefully received!