ornament (something) with (something)
To adorn something with various ornaments or decorations. He had ornamented his cubicle with figurines from different video games and animated shows. They've ornamented the entire outside of their house with Christmas paraphernalia.
ornament something with something
to decorate something with something. The driver ornamented his truck with lots of chrome. The room was ornamented with velvet drapes, wood paneling, family portraits—a den of Victorian virtue.