Regardless of where you want to sell, this question is the most widely asked :) and there isn't a set of sure answers as to what you can sell.
Finding out what to sell will mean a lot of research! And I'm not sure other members would be too keen in sharing their niche products.
Try researching your market, look for a product that has a strong demand yet limited supply, look for something that will work for you. Check your competition as well as your available suppliers. You might find this Link hidden: Login to view
Just to help you brainstorm more product options, you might want to check the Link hidden: Login to view
Hope this helps! Please let us know how you get on.