Hello Kimberly,
Sorry. The crop marks show the edge of the print area. And, some pictures go outside the print area, so they'd be cut off.
BUT: The text box - show text boundaries - version did work. Thanks.
I could actually create a blank box of any size on the page and use that.

However, now the printer is now demanding a pdf with crop marks, so I am making the little squares in the corner, leaving them as printable items. They appear in the pdf, and it's the printer's job of finding a way to print just the extended print area and not outside the print area.

The problem is that this is really a job for a DTP program such as InDesign. Even Publisher is not really up to doing crop marks easily. I love WORD, but you have to be fair and realise that it is a the most capable word processor.