Hi Lauren - many members who have male dogs use human baby diapers with great success. I use belly bands for my guys. I make my own out of Dupioni Silk (gentle on hair) and there are several members who make them for sale. You might check out the following thread for who makes what. Members Nancy1999 and and 4doggiemama did a fantastic job compiling the list and update it regularly:
http://www.yorkietalk.com/forums/yor...ore-sites.html