Cole particularly likes yellow objects...he has for quite some time. I never really made anything of it, until recently. Now I just find it comical. He'll have all his rings, shapes, letters and blocks thrown in a pile around him and 9 out of 10 times he'll rummage through all of those items and pull out a yellow one.
Two of his favorite toys continue to be his "cookie jar" shape sorter container and his plastic ring stack. No matter how many new toys with bells and whistles he receives, those are his two favs!