Well here are a few of my ideas:
I put my business cards inside of books at the local books stores/libraries that pertain to my target market!
Also, I have designed a few giveaways for a free Swarovski ring. The idea is to go viral. So I give entries for each retweet of the giveaway, entries for people following my blog or facebook page etc.
This type of setup allows your followers to promote you to their followers and then those followers etc.
It is a great way to spread the word around about your shop.
Check out more creative way you can promote your Etsy shop over in the Etsy forums.