I believe there are dingbat fonts that most PC users are likely to have, but I can't recall the names &, unfortunately, don't have time at work this week to check.
If you're just wanting to send the document to a PC user & he/she doesn't need to edit it, why not export as a PDF & send that? OS X will imbed any fonts & you can be (almost) guaranteed of the document looking just as you created it. With the differences of fonts & display (72 dpi vs 96 dpi) betweem Macs & PCs, even with fonts of the same name, there is no guarantee. I've created a number of PDFs from Pages documents & they appear on my work PC just as I made them on my Mac.
