Hi - I live in Mexico and just bought some belly bands from DesignerDoggie thru E-bay. Her website is
www.designerdoggie.net. There was a slightly higher shipping charge. Be aware that Mexican mails are notoriously untrustworthy, but I decided to chance it with this order. For anything of real value, I use DHL and it costs a bunch but always arrives. You might also have to pay Customs tax.
There are some doggie duds on the Mexican E-Bay. Look at
www.mercadolibre.com.mx.