Before getting a shop or a place where you can put up your store, you might want to clear up your mine. Mobile accessories like ipad case designs, covers and sleeves for Android and iPhone devices and other type of mobile phones accessories, are all available in Alibaba, in fact I also use its sister site aliexpress.com to purchase products for my shop. But if you are thinking of buying Actual phones and gadgets from them, don't you know that they mostly offer replicas or clone products of iPad, iPhone and Android devices? So if that is the case, and you will buy those items, make sure that those will not get hold in your Country customs, every governments have the rights to confiscate distribution and marketing of fake products. But, if you think your country allows those regulation, well your only problem perhaps will be the custom duties and taxes. For accessories, try also checking www.kekacase.com
, they are also offering huge variety of mobile accessories.