Promotion of the Internet shop | Money maker talk

Hello. I have recently opened my coffee online. By the way, I also delivered the finished coffee of several types. So ordered a full package promotion on the internet. But I can not say that there are a lot of customers. Of course, the result was, but that does not suit me. Now, have I had the idea and if I order on promotional mugs with the logo of my store and its contacts and that I will give them to the customers? Well, and I will make coffee in disposable plates also with a logo and contacts? What do you think is the point?