Selection to PDF Script
Publishing consultant Martinho Da Gloria (creator of the wonderfully useful Layout Zone script add-on for InDesign) has made another free script available for InDesign users: SelectionToPDF. As the name would lead one to believe, the script enables you to select one or more object in InDesign, and export just that selection to a PDF file, not the whole page on which it lives. Cari Jansen has a good blog post on the script with step-by-step instructions and screen shots.