You can start your own E commerce website with no money if you create an ebay store and then do drop shipping of other peoples products.
You setup an ebay store and then look for items that sell good for a profit and then list those items for sell on ebay.
Then you take the orders and pass them onto the drop shipper and they do all the shipping and then you pay the drop shipper once you make the sale for the item.
So there would be no money to come out of your pocket.