Bookmark

For your clients who have read many projects or script this could be a nice promotional gift, it is small and can come in handy to bookmark a page so that the person reading can come back and find the page without any trouble, and it is a pen drive so it serves two purposes both of which will definitely prove to be effective. It is tiny and can be stored almost anywhere if you are prone to losing your drives then you might want to attach it to a key ring or lanyard whatever suits your needs.