Anybody know any da vinci works?

i mean like, ones that i can draw and color in if there is color in the original. but i dont really have too many drawing skills. im allowed to trace, though i find it a bit of a pain. its for a project i have to do for cl. anyway, im just trying to find a work of art by a renaissance artist that someone with mediocre drawing skills can recreate on paper, hopefully w/o color. anybody have ideas? bc i have to have at least 3 for bakups so nobody else can take at least one i picked.