In the past, I have signed up for several exchanges where you make and send samples to the host, who in turn packages them up and sends them to participants in the exchange. This is a great way to get your name and items out to customers who might otherwise not know you exist. The sellers simply put the samples in their packages when they mail them out to buyers--thus promoting your shop!
I would love to host a sample exchange. It's simple enough to get involved: just leave me a comment here if you'd like to participate, how many, and what types of samples you'd like to send. The more samples you send, the more buyers will know who you are--simple as that. You don't necessarily have to send a sample of something you make in your shop either--just something that shows off your craftsmanship and gets buyers interested enough to go have a look at your shop. If you cannot think of samples to make, you can simply send some business cards (you will also have to send a business card or your shop address with each sample of course).
I will let you know when the boxes will be sent once all participants have sent their samples to me and I package up the boxes (I will divide samples evenly). I will then let you know when I will have to have your samples.