This must come close. Funny, but in all fairness, not a bad idea..
http://cgi.ebay.com.au/NEW-Brief-Safe-Fake-Dirty-Underwear-Home-Safe-/230442120483?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item35a76bb523
http://cgi.ebay.com.au/NEW-Brief-Safe-Fake-Dirty-Underwear-Home-Safe-/230442120483?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item35a76bb523