Seacoast Web Design on "Portfolio Posts Broken (kind of)"

They can even be in a hidden div!
Category/Tag or custom Page Templates could do the trick easily!
HTML:

<div class="f150">F-150, f-150, F150, f150</div>

CSS:

.f150 {
 display:none;
}

Proof:
http://seacoastwebservice.com/a-child-category-sub-menu/
http://seacoastwebservice.com/?s=f150&submit=Search