Create an ad as well for the goods you can bring from your home country as for the goods you'd be looking for from other countries.
Use "Country" to specify from where you'd expect to have stuff brought or to what country you'd be able to bring some.
You will specify if you are requesting stuff or able to bring stuff using the "Type" field.
Use "Home town" to specify your home town (and country).
Specify if you'd request a fee on top of the actual price of the goods or if you ask others to bringsome if you'd be willing to pay a fee.
Dont't forget a nice image!

Good luck and if it looks like you'll have a match make sure you tell the world !